SECTION 3
NBS / WORKMANSHIP AND MATERIALS
Issue Date : Oct 00
Rev. No. : 0
DMS-613
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documents\Section 3 NBS.doc
Islington Town Hall Auditorium
October 2008
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Table of Contents
Title
Page
C20
Demolition
3
C51
Repairing/ Renovating/ Conserving timber
6
D20
Excavating and fil ing
8
E10
Mixing/casting/curing in situ concrete
10
E20
Formwork for in situ concrete
12
E30
Reinforcement for in situ concrete
13
F10
Brick/ block wal ing
14
F30
Accessories/ sundry items for brick/ block/ stone wal ing
17
G12
Isolated structural metal members
18
G20
Carpentry/ timber framing/ first fixing
19
J30
Liquid applied tanking/ damp proofing
21
J40
Flexible sheet tanking/ damp proofing
23
K10
Plasterboard dry linings/ partitions/ ceilings
24
K13
Rigid sheet fine linings and panel ing
27
K21
Wood strip/ board fine flooring/ linings
29
L20
Doors/ shutters/ hatches
30
L40
General glazing
32
M10
Cement based level ing/ wearing screeds
34
M20
Plastered/ Rendered/ Roughcast coatings
37
M40
Stone/ concrete/ quarry/ ceramic tiling/ mosaic
41
M50
Rubber/ plastics/ cork/ lino/ carpet tiling/ sheeting
44
M52
Decorative papers/ fabrics
49
M60
Painting/clear finishing
52
N10
General fixtures/ furnishings/ equipment
53
N13
Sanitary appliances and fittings
54
P20
Unframed isolated trims/ skirting’s/ sundry items
59
P21
Door/ window ironmongery
60
P31
Holes, chases, covers and supports for services
61
R11
Above ground foul drainage systems
62
X12
Vertical platform lift systems
64
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C20 Demolition
To be read with Preliminaries/General conditions
GENERAL REQUIREMENTS
110
DESK STUDY/ SURVEY
• Scope: Before starting demolition work, examine available information, carry out a survey
of the structures, site and surrounding area.
• Report and method statements: Submit, describing:
-
Form, condition and details of the structures, site and surrounding area.
Extent: areas where wal s are to be removed and where the lift pit is to be formed.
-
Form, location and removal methods of flammable, toxic or hazardous materials.
-
Form, location and removal methods of materials for reuse or recycling.
-
Type and location of adjoining or surrounding premises which may be adversely
affected by noise, vibration, dust or removal of structure.
-
Identification and location of services above and below ground, including those required
for the Contractor's own use. Arrangements for disconnection and removal of services.
-
Type and location of features of historical, archaeological, geological or ecological
importance.
-
Sequence and method of demolition including details of specific pre-weakening.
-
Arrangements for protection of personnel and the public including exclusion of
unauthorized persons.
-
Arrangements for control of site transport and traffic.
-
Proposed programme of work.
-
Special requirements: n/a.
Format of report: paper and electronic.
120
EXTENT OF DEMOLITION
• General: Subject to retention requirements specified elsewhere demolish structures down
to upper level of ground floor slab.
140
BENCH MARKS
• Unrecorded bench marks and other survey information: Give notice when found.
Do not remove or destroy.
150
FEATURES TO BE RETAINED
• General: Keep in place and protect the fol owing: remaining items as indicated on the
drawings.
SERVICES AFFECTED BY DEMOLITION
210
SERVICES REGULATIONS
• Work carried out to or which affects new or existing services: Carry out in accordance with
the Byelaws or Regulations of the relevant Statutory Authority.
220
LOCATION OF SERVICES
• Services affected by the Works: Locate and mark positions.
• Mains services: Arrange with the appropriate authorities for location and marking of
positions.
• Standard: In accordance with National Joint Utilities Group (NJUG) '
Guidelines on the
positioning and colour coding of utilities' apparatus'.
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230
DISCONNECTION - ARRANGED BY CONTRACTOR
• General: Arrange with the appropriate authorities for disconnection of services and
removal of fittings and equipment prior to starting demolition.
240
DISCONNECTION OF DRAINS
• General: Locate disconnect and seal disused drain connections.
Sealing: Within the site and permanent.
250
DRAINS IN USE
• General: Protect drains, manholes, inspection chambers, gul ies, vent pipes and fittings
stil in use and ensure that they are kept free of debris.
• Damage: Make good damage arising from demolition work. Leave clean and in working
order at completion.
260
BYPASS CONNECTIONS
• General: Provide as necessary to maintain continuity of services to occupied areas of the
same and adjoining properties.
Minimum notice to occupiers: 72 hours if shutdown is necessary during changeover.
270
SERVICES WHICH ARE TO REMAIN
• Damage: Give notice and notify service authority or owner of damage arising from the
execution of the works.
Repairs: Complete as directed, and to the satisfaction of the service authority or owner.
DEMOLITION WORK
310
WORKMANSHIP
• Standard: Demolish structures in accordance with BS 6187.
• Operatives:
-
Appropriately skil ed and experienced for the type of work.
-
Holding or in training to obtain relevant CITB Certificates of Competence.
• Site staff responsible for supervision and control of work: Experienced in the assessment
of risks involved and methods of demolition to be used.
320
GAS OR VAPOUR RISKS
Precautions: Prevent fire or explosion caused by gas or vapour.
330
DUST CONTROL
• General: Reduce airborne dust by periodical y spraying demolition works with an
appropriate wetting agent. Keep public roadways and footpaths clear of mud and debris.
Lead dust: Submit method statement for control, containment and clean-up regimes.
340
HEALTH HAZARDS
• Precautions: Protect site operatives and general public from hazards associated with
vibration, dangerous fumes and dust arising during the course of the Works.
350
ADJOINING PROPERTY
• Temporary support and protection: Provide. Maintain and alter as necessary as work
progresses.
• Damage: Minimize. Promptly repair.
-
Leave no unnecessary or unstable projections.
-
Make good to ensure safety, stability, weather protection and security.
• Support to foundations: Do not disturb.
Defects: Report when exposed or becoming apparent.
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360
STRUCTURES TO BE RETAINED
• Parts which are to be kept in place: Protect.
• Extent of work: Cut away and strip out with care to reduce the amount of making good to a
minimum.
370
PARTLY DEMOLISHED STRUCTURES
• General: Leave in a stable condition, with adequate temporary support at each stage to
prevent risk of uncontrol ed col apse. Keep safe outside working hours.
• Temporary works: Prevent debris from overloading.
Unauthorised persons: Prevent access.
380
DANGEROUS OPENINGS
General: Il uminate and protect. Keep safe outside working hours.
391
ASBESTOS CONTAINING MATERIALS
• Discovery: Give notice immediately of suspected asbestos containing materials discovered
during demolition work. Avoid disturbing such materials.
Methods for safe removal. Submit details and statutory risk assessments.
410
UNFORESEEN HAZARDS
• Unrecorded voids, tanks, chemicals, etc. discovered during demolition: Give notice.
Methods for safe removal, fil ing, etc: Submit details.
420
OPEN BASEMENTS, ETC
• Temporary support: Leave adequate buttress wal s or provide temporary support to
basement retaining wal s up to ground level.
• Safety: Make remaining sections of retaining and buttress wal s safe and secure.
• Water movement: Make holes in basement floors to al ow water drainage or penetration
(depending on water table). Provide a hole for every 10 m², not less than 600 mm in
diameter.
440
SITE CONDITION AT COMPLETION
• Debris: Clear away and leave the site in a tidy condition.
Other requirements: n/a.
MATERIALS ARISING
510
CONTRACTOR'S PROPERTY
• Components and materials arising from the demolition work: Property of the Contractor
except where otherwise provided.
Remove from site as work proceeds where not to be reused or recycled for site use.
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C51 Repairing/ Renovating/ Conserving timber
To be read with Preliminaries/ General conditions
GENERAL
110
INSPECTION
• Purpose: To confirm nature and extent of repair/ renovation/ conservation work shown on
drawings and described in survey reports and schedules of work.
• Parties involved:
- Contract administrator;
- Contractor's representative; and
- Structural engineer.
• Timing: At least 7 days before starting each section of work.
Instructions issued during inspection: Confirm in writing.
150
TIMBER PROCUREMENT
• Timber (including timber for wood based products): Obtained from wel managed forests
and/ or plantations in accordance with:
-
The laws governing forest management in the producer country or countries.
-
International agreements such as the Convention on International Trade in Endangered
Species of wild fauna and flora (CITES).
• Documentation: Provide either:
-
Documentary evidence (which has been or can be independently verified) regarding the
provenance of al timber supplied.
-
Evidence that suppliers have adopted and are implementing a formal environmental
purchasing policy for timber and wood based products.
360
SOFTWOOD FOR JOINERY REPAIRS oak panel frames
• Species: to match existing.
• Quality: General y to BS EN 942; free from decay and insect attack (except pinhole
borers).
-
Appearance class: Class J2.
• Treatment: bees wax.
Moisture content on delivery: 9-13%.
370
HARDWOOD FOR JOINERY REPAIRS oak panels
• Species: Oak.
• Quality: General y to BS EN 942; free from decay and insect attack (except pinhole
borers).
-
Appearance class: Class J2.
• Treatment: bees wax.
Moisture content on delivery: 9-13%.
EXECUTION
600
WORKMANSHIP
• Skil and experience of site operatives: Appropriate for types of work on which they are
employed.
Documentary evidence: Submit on request.
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620
PROTECTION OF TIMBER AND WOOD COMPONENTS BEFORE AND DURING
INSTALLATION
• Storage: Keep dry, under cover, clear of the ground and with good ventilation. Support
sections/ components on regularly spaced, level bearers on a dry, firm base.
• Handling: Do not overstress, distort or disfigure sections or components during transit,
storage, lifting, erection or fixing.
630
MATERIAL SAMPLES
• Representative samples of designated materials: Submit before placing orders.
Designated materials: oak panels.
650
DIMENSIONS GENERALLY
• Site dimensions: Take as necessary before starting fabrication.
-
Discrepancies with drawings: Report without delay and obtain instructions before
proceeding.
680
WARPING OF TIMBER
• Bow, spring, twist and cup: Not greater than the limits set down in BS 4978, BS EN 519 or
BS EN 14081-1 for softwood, or BS 5756 for hardwood.
710
REUSE OF TIMBER SECTIONS/ WOOD COMPONENTS
• Sections/ components scheduled to be removed but not reused in existing locations:
Agree extent of retention for reuse elsewhere in the works.
-
Treatment fol owing removal: Refurbish and repair as necessary.
-
Storage: Protect against damage, and store until required.
Storage location: On site.
Reuse: Adapt sections/ components, as necessary, and instal in agreed locations.
720
TEMPORARY REMOVAL AND REINSTATEMENT OF FITTINGS/ FIXTURES
• Items to be removed, and reinstated on completion of repair work:
-
Identification: Attach labels or otherwise mark items using durable, non-permanent
means, to identify location and refixing instructions, where applicable.
-
Treatment fol owing removal: Refurbish and repair.
-
Storage: Protect against damage, and store until required.
Storage location: On site.
-
Reinstatement: Refit in original locations using original instal ation methods.
Items unsuitable or not required for reuse: Obtain instructions regarding disposal.
730
PARTIAL REMOVAL OF EXISTING DECORATIVE/ PROTECTIVE FINISH where
required as indicated on the drawings
• Extent: Remove minimum necessary to expose damaged or decayed wood. Feather the
edge of remaining coating around repair site.
Method: Careful abrasion using moistened waterproof abrasive paper.
740
REMOVAL OF EXISTING DECORATIVE/ PROTECTIVE FINISH where required as
indicated on the drawings
• Extent: Remove completely back to bare wood.
Method: Submit proposals.
750
CLEANING DIRTY OR STAINED WOOD
• General y: Scrub with neutral pH soap and clean, warm water.
• Old varnish: Remove using mixture of turpentine (not turpentine substitute) and acetone in
proportions determined by experiment, fol owed by washing down.
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D20 Excavating and filling
To be read with Preliminaries/ General conditions
25
INSPECTING FORMATIONS
-
Notice: Make advance arrangements for inspection of formations by Building Control and
CA
27
ADJACENT EXCAVATIONS
-
Timing of excavations in close proximity: Complete deepest excavation first.
30
OBSTRUCTIONS
-
Recorded foundations, beds, drains, etc: Break out and seal off drain ends. Remove
contaminated earth.
-
Unrecorded foundations, beds, basements, fil ing, tanks, service pipes, drains, etc: Give
notice to CA
35
EXCESS EXCAVATIONS
-
Excavation taken wider than required: Backfil with approved excavated material or
hardcore.
-
Excavation taken deeper than required: Backfil with foundation concrete.
40
SURPLUS EXCAVATED MATERIAL
-
Material not specified to be removed from site.
50
HAZARDOUS, AGGRESSIVE OR UNSTABLE MATERIALS
-
General y: Do not import or use fil materials which would, either in themselves or in
combination with other material or ground water, give rise to a health hazard, damage to building
structures or instability in the fil ing.
-
Soluble sulfate content of imported materials for fil ing when tested to BS 1377-3, clause
5, using a 2:1 water-soil extract (maximum): 1 g/litre.
53
WATER
-
General y: Keep excavations free from water until foundations and below ground
constructions are completed.
55
PLACING FILL GENERALLY
-
Excavations and areas to be fil ed: Free from loose soil, rubbish and standing water.
-
Freezing conditions: Do not use frozen materials or materials containing ice. Do not place
fil on frozen surfaces.
-
Fil against structures, membranes or buried services: Place and compact in a sequence
and manner which wil ensure stability and avoid damage.
60
BACKFILLING TO FOUNDATIONS
-
Under oversite concrete and pavings: Hardcore as clause 65.
62
FROST SUSCEPTIBILITY
-
General: Except as al owed below, fil must be non frost-susceptible as defined in
Transport Research Laboratory Report SR 829 'Specification for the TRRL frost-heave test'.
-
Frost-susceptible fil : Use only within the external wal s of buildings below spaces that wil
be heated. Protect from frost during construction.
65
HARDCORE
-
Fil : Granular material, free from harmful matter and excessive dust or clay, wel graded,
passing a 75 mm BS sieve and one of the fol owing:
- Crushed hard rock or quarry waste.
- Crushed concrete, brick or tile, free from plaster.
- Gravel or hoggin.
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-
Fil ing: Spread and level both backfil ing and general fil ing in layers not exceeding 150
mm. Thoroughly compact each layer using a vibratory rol er 2.5T equivalent unless noted
otherwise.
75
BLINDING TO HARDCORE
-
Surfaces to receive sheet overlays or concrete: Blind with: sand, fine gravel or other
approved fine material applied to provide a close smooth surface.
-
Permissible deviation on surface level: +0 -25 mm.
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E10 Mixing/casting/curing in situ concrete
To be read with Preliminaries/ General conditions
10
DESIGNED MIX FOR FOUNDATIONS, DRAINAGE, MANHOLES ETC:
-
To the relevant clauses of BS 5328:Parts 2, 3 and 4.
-
Grade: C20
-
Nominal maximum size of aggregate: 20 mm
-
Aggregate(s):
Coarse: To BS 882
Fine: To BS882
Cement: To BS EN 197, Sulphate resisting to BS4027, PFA with Portland to BS 3892-1, GGBF
with Portland to BS 6699.
-
Minimum cement content: 280 kg/cu m
-
Maximum free water/cement ratio: 0.55
-
Maximum total percentage of chloride ion by mass of cement: 0.4%
-
Information to be provided by the producer: As BS 5328: Part 3, clause 3.
11
DESIGNED MIX FOR GROUND FLOOR SLABS, MANHOLE TOPS
-
To the relevant clauses of BS 5328:Parts 2, 3 and 4.
-
Grade: C25
-
Nominal maximum size of aggregate: 20 mm
-
Aggregate(s):
Coarse: To BS 882
Fine: To BS882
-
Cement: To BS EN 197, Sulphate resisting to BS4027, PFA with Portland to BS 3892-1,
GGBF with Portland to BS 6699.
-
Minimum cement content: 330 kg/cu m
-
Maximum free water/cement ratio: 0.55
-
Maximum total percentage of chloride ion by mass of cement: 0.4%
-
Information to be provided by the producer: As BS 5328: Part 3, clause 3.
13
DESIGNED MIX FOR WEAK MIX FILL:
-
To the relevant clauses of BS 5328:Parts 2, 3 and 4.
-
Grade: C15
-
Nominal maximum size of aggregate: 20 mm
-
Aggregate(s):
Coarse: To BS
Fine: To BS882
-
Cement: To BS EN 197, Sulphate resisting to BS4027, PFA with Portland to BS 3892-1,
GGBF with Portland to BS 6699.
-
Minimum cement content: 230 kg/cu m
-
Maximum free water/cement ratio: 0.65
-
Maximum total percentage of chloride ion by mass of cement: 0.4%
-
Information to be provided by the producer: As BS 5328: Part 3, clause 3.
20
CONCRETE FOR DRY LEAN MIX:
-
Proportions: 1:18
-
Cement: As BS 12 and clause 240
-
Aggregate(s): As BS 882
-
Nominal maximum size of aggregate: 20 mm.
45
PROPERTIES OF FRESH CONCRETE to be determined by the Contractor in consultation with
the concrete supplier to suit the on site circumstances and methods, but in al respects
maintaining compliance with this specification.
50
UNDERLAY: Before placing structural concrete (not blinding concrete) on hardcore or other
absorbent substrates, lay building paper to BS 1521, Class B or polyethylene sheet, 250
micrometres thick. Lap edges 150 mm.
60
PLACING AND COMPACTING:
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-
At time of placing ensure that al surfaces on which concrete is to be placed are clean,
with no debris, tying wire clippings, fastenings or free water.
-
Place while sufficiently plastic for ful compaction. Do not add water or retemper mixes.
The temperature of concrete at time of placing must be not less than 5°C. Do not place against
frozen or frost covered surfaces.
-
Ful y compact to ful depth (until air bubbles cease to appear on the top surface),
especial y around reinforcement, cast-in accessories, into corners of formwork and at joints. Use
mechanical vibration .
70
CURING AND PROTECTING:
-
Prevent surface evaporation from concrete surfaces as specified below by covering with
polyethylene sheeting as soon as practicable after completion of placing and compacting,
removing only to permit any finishing operations and replacing immediately thereafter:
-
Surfaces which wil be exposed to frost, and wearing surfaces of floors and pavements,
regardless of weather conditions: not less than 10 days
-
Other structural concrete surfaces: not less than 5 days.
-
Adequately protect concrete from shock, indentation and physical damage.
71
High Alumina Cement and Calcium Chloride wil not be permitted.
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E20 Formwork for in situ concrete
To be read with Preliminaries/ General conditions
10
WORK BELOW GROUND: Vertical faces of strip footings, bases and slabs may be cast against
faces of excavation, provided the faces are sufficiently accurate and stable and adequate
measures are taken to prevent contamination of concrete.
40
FORMWORK:
-
Construct accurately and robustly to produce finished concrete to the required
dimensions. Formed surfaces must be free from twist and bow, al intersections, lines and angles
being square, plumb and true.
-
Construct (including joints between forms and completed work), to prevent loss of grout,
using seals when necessary. Secure tight against adjacent concrete to prevent formation of
steps.
-
Fix inserts or box out as required in correct positions before placing concrete. Form al
holes and chases. Do not cut hardened concrete without approval.
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E30 Reinforcement for in situ concrete
To be read with Preliminaries/ General conditions
10
PLAIN BAR REINFORCEMENT
To BS 4449, Grade 250.
20
DEFORMED BAR REINFORCEMENT
To BS 4449, Grade 460.
30
FABRIC REINFORCEMENT
Steel fabric to BS 4483
40
CLEANLINESS: At time of placing concrete, reinforcement to be clean and free of corrosive
pitting, loose mil scale, loose rust, ice and substances which may adversely affect the
reinforcement, concrete, or bond between the two.
50
LAPS IN NOMINAL BAR REINFORCEMENT: Not less than 300 mm unless noted otherwise on
drawings.
60
LAPS IN FABRIC REINFORCEMENT: Not less than 250 mm unless otherwise noted on
drawings.
70
FIXING REINFORCEMENT:
-
Where ground bearing slabs are reinforced with a single layer of fabric in the upper part
of the slab, the fabric may be placed in position on top of the first compacted layer of concrete,
fol owed by the top layer of concrete, placed within two hours of the first layer.
-
In al other cases fix reinforcement before the concrete is placed, providing suitable
spacers at not more than 1 m centres or closer spacing as necessary to support in position and
maintain the specified cover.
-
Fix adequately, using tying wire, which must not intrude into the concrete cover.
71
INSPECTION:
Al ow CA to inspect reinforcement and formwork before casting concrete, giving at least 24 hours
notice.
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F10 Brick/ block walling
To be read with Preliminaries/ General conditions.
TYPES OF WALLING
355
CONCRETE COMMON BLOCKWORK to chair store wal
• Blocks: To BS EN 771-3.
-
Manufacturer: Hanson Building Products Marketing Department, Stewartby, Bedford,
MK43 9LZ. Tel: 08705 258 258. Fax: 01234 762 040. Email: [email address] Web:
www.hanson.biz.
Product reference: Evalite Standard Blocks.
-
Configuration: Solid.
-
Compressive strength:
Mean value: .
Characteristic value: .
Category: .
-
Freeze/ Thaw resistance: .
-
Thermal properties: .
-
Work sizes (length x width x height): 440 x 150 x 215mm.
-
Special shapes: .
-
Additional requirements: .
• Mortar: As section Z21.
-
Standard: To BS EN 998-2.
-
Mix: 1:1:6 cement:lime:sand.
-
Additional requirements: None.
Bond: Half lap stretcher.
355A
CONCRETE COMMON BLOCKWORK to form lift shaft
• Blocks: To BS EN 771-3.
-
Manufacturer: Hanson Building Products Marketing Department, Stewartby, Bedford,
MK43 9LZ. Tel: 08705 258 258. Fax: 01234 762 040. Email: [email address] Web:
www.hanson.biz.
Product reference: Evalite Standard Blocks.
-
Configuration: Solid.
-
Compressive strength:
Mean value: .
Characteristic value: .
Category: .
-
Freeze/ Thaw resistance: .
-
Thermal properties: .
-
Work sizes (length x width x height): 440 x 200 x 215mm.
-
Special shapes: .
-
Additional requirements: .
• Mortar: As section Z21.
-
Standard: To BS EN 998-2.
-
Mix: 1:1:6 cement:lime:sand.
-
Additional requirements: None.
Bond: Half lap stretcher.
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355B
CONCRETE COMMON BLOCKWORK to toilet wal s
• Blocks: To BS EN 771-3.
-
Manufacturer: Hanson Building Products Marketing Department, Stewartby, Bedford,
MK43 9LZ. Tel: 08705 258 258. Fax: 01234 762 040. Email: [email address] Web:
www.hanson.biz.
Product reference: Evalite Standard Blocks.
-
Configuration: Solid.
-
Compressive strength:
Mean value: .
Characteristic value: .
Category: .
-
Freeze/ Thaw resistance: .
-
Thermal properties: .
-
Work sizes (length x width x height): 440 x 100 x 215mm.
-
Special shapes: .
-
Additional requirements: .
• Mortar: As section Z21.
-
Standard: To BS EN 998-2.
-
Mix: 1:1:6 cement:lime:sand.
-
Additional requirements: None.
Bond: Half lap stretcher.
WORKMANSHIP GENERALLY
440
CONDITIONING OF CONCRETE BRICKS/ BLOCKS
• Autoclaved concrete bricks/ blocks delivered warm from manufacturing process: Do not
use.
• Age of nonautoclaved concrete bricks/ blocks: Do not use until at least four weeks old.
• Avoidance of suction in concrete bricks/ blocks: Do not wet.
Use of water retaining mortar admixture: Submit details.
460
MORTAR GROUPS
• Mix proportions: For a specified group select a mix design from the fol owing:
________________________________________________________________________
Group
1
2
3
4
________________________________________________________________________
PC*:lime:sand with or without air entraining additive
1:0-0.25:3
1:0.5-4.5
1:1:5-6
1:2:8-9
________________________________________________________________________
Masonry cement:sand containing PC* and lime in approx ratio 1:1, and an
air entraining additive
-
1:3 1:3.5-4
1:4.5
________________________________________________________________________
Masonry cement:sand containing PC* and inorganic materials other than lime
and air entraining additive
-
1:2.5-3.5
1:4-5 1:5.5-6.5
________________________________________________________________________
PC*:sand and air entraining additive
1:3
1:3-4 1:5-6 1:7-8
________________________________________________________________________
PC* = Portland cement
• Batching: Mix proportions by volume.
Mortar type: Continuous throughout any one type of masonry work.
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500
LAYING GENERALLY
• Mortar joints: Fil vertical joints. Lay bricks, solid and cel ular blocks on a ful bed.
• Bond where not specified: Half lap stretcher.
Vertical joints in facework: Even widths. Plumb at every fifth cross joint.
520
ACCURACY
• Courses: Level and true to line.
• Faces, angles and features: Plumb.
• Permissible deviations:
-
Position in plan of any point in
relation to the specified building
reference line and/ or point at
the same level
± 10 mm.
-
Straightness in any 5 m length
± 5
mm.
-
Verticality up to 3 m height
± 10 mm.
-
Verticality up to 7 m height
± 14 mm.
-
Overal thickness of wal s
± 10 mm.
-
Level of bed joints up to 5 m
(brick masonry)
± 11 mm.
-
Level of bed joints up to 5 m
± 13 mm.
535
HEIGHT OF LIFTS IN WALLING USING CEMENT GAUGED OR HYDRAULIC LIME
MORTAR
• Quoins and advance work: Rack back.
• Lift height (maximum): 1.2 m above any other part of work at any time.
Daily lift height (maximum): 1.5 m for any one leaf.
595
LINTELS
Bearing: Ensure ful length masonry units occur immediately under lintel ends.
610
SUPPORT OF EXISTING WORK
• Joint above inserted lintel or masonry: Ful y consolidated with semidry mortar to support
existing structure.
635
JOINTING
Profile: Consistent in appearance.
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F30 Accessories/ sundry items for brick/ block/ stone walling
To be read with Preliminaries/ General conditions.
REINFORCING/ FIXING ACCESSORIES
241
WALL STARTERS/ CONNECTORS
• Manufacturer: Ancon Building Products, President Way, President Park, Sheffield S4 7UR
Tel: 0114 275 5224 Fax: 0114 276 8543 Email: [email address] Web site:
www.ancon.co.uk .
-
Product reference: Staifix Universal Wal Starter System .
• Material/ finish: Austenitic stainless steel .
Sizes: .
320
DAMP PROOF COURSE - POLYETHYLENE
• Standard: To BS 6515.
• Manufacturer: contractors choice .
Product reference: .
INSTALLATION OF DPCS/ CAVITY TRAYS
415
HORIZONTAL DPCS
• Placement: In continuous lengths on ful even bed of fresh mortar, with 100 mm laps at
joints and ful laps at angles.
• Width: At least ful width of leaf unless otherwise specified. Edges of dpc not covered with
mortar or projecting into cavity.
• Overlying construction: Immediately cover with ful even bed of mortar to receive next
masonry course.
Overal finished joint thickness: As close to normal as practicable.
425
GROUND LEVEL DPCS
Joint with damp proof membrane: Continuous and effectively sealed.
560
VERTICAL DPCS GENERALLY
• Form: In one piece wherever possible.
Joints: Upper part overlapping lower not less than 100 mm.
JOINTS
615
MOVEMENT JOINTS WITHOUT SEALANTTO INTERNAL WALL STARTER
LOCATIONS
• Fil er: Closed cel polyethylene foam OSA.
-
Thickness: To match design width of joint.
-
Manufacturer: contractors choice .
Product reference: .
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G12 Isolated structural metal members
To be read with Preliminaries/ General conditions
10 FABRICATION OF MEMBERS:
- Steel sections: To BS 4-1, BS EN 10055, BS EN 10056 or BS EN 10210, as appropriate.
-
Steel: To BS EN 10025, grade S275.
-
Surface condition: Free from heavy pitting and rust, burrs, sharp edges and flame cutting
dross.
- Cuts and holes: Form neatly and accurately.
- Welding: Metal arc method to BS EN 1011-2.
-
Welded joints: Ful y fused, with mechanical properties not less than those of the parent metal.
-
Site welding: Not al owed without permission.
20 SHOP PRIMING
- Preparation: Remove loose scale and rust, burrs, fins, sharp edges and weld spatter. Clean out
crevices. Thoroughly degrease and rinse with clean water. Al ow to dry.
- Primer: high build zinc phosphate
- Application: Apply one ful coat within 8 hours of cleaning surfaces, free from runs and sags.
35 NUTS,BOLTS & WASHERS
-
to be protected against corrosion:
-
galvanised to BS ISO 1461
-
sheradised to BS4921 class 1
-
zinc plated to BS3382
40 INSTALLATION
- Accuracy: Position members true to line and level. If necessary, use steel packs of sufficient area
to al ow ful transfer of loads to bearing surfaces.
- Fixing: Use washers under bolt heads and nuts.
-
Tapered washers: Provide under bolt heads and nuts bearing on sloping surfaces. Match
taper to slope angle and align correctly.
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G20 Carpentry/ timber framing/ first fixing
To be read with Preliminaries/ General conditions.
GENERAL
105
TIMBER PROCUREMENT
• Timber (including timber for wood based products): Obtained from wel managed forests/
plantations in accordance with:
-
The laws governing forest management in the producer country or countries.
-
International agreements such as the Convention on International Trade in Endangered
Species of wild fauna and flora (CITES).
• Documentation: Provide either:
-
Documentary evidence (which has been or can be independently verified) regarding the
provenance of al timber supplied, or
-
Evidence that suppliers have adopted and are implementing a formal environmental
purchasing policy for timber and wood based products.
160
GRADING AND MARKING OF SOFTWOOD
• Timber of a target/ finished thickness less than 100 mm and not specified for wet
exposure: Graded at an average moisture content not exceeding 20% with no reading
being in excess of 24% and clearly marked as 'DRY' or 'KD' (kiln dried).
• Timber graded undried (green) and specified for instal ation at higher moisture contents:
Clearly marked as 'WET' or 'GRN'.
• Structural timber members cut from large graded sections: Regraded to approval and
marked accordingly.
PRODUCTS
270
UNGRADED SOFTWOODfor al areas where studwork is required
• Quality of timber: Free from decay, insect attack (except pinhole borers) and with no knots
wider than half the width of the section.
• Surface finish: Regularized.
• Treatment: Organic solvent impregnation to NBS section Z12 and Wood Protection
Association Commodity Specification C8, Service life: 40 years.
WORKMANSHIP GENERALLY
402
CROSS SECTION DIMENSIONS OF NONSTRUCTURAL SOFTWOOD
• Dimensions: Dimensions in this specification and shown on drawings are finished sizes.
• Maximum permitted deviations from finished sizes: As stated in BS EN 1313-1:
-
Clause 6 for sawn sections.
Clause NA.2 for further processed sections.
420
WARPING OF TIMBER
• Bow, spring, twist and cup: Not greater than the limits set down in BS 4978 or BS EN
14081-1 for softwood, or BS 5756 for hardwood.
430
SELECTION AND USE OF TIMBER
• Timber members damaged, crushed or split beyond the limits permitted by their grading:
Do not use.
• Notches and holes: Position in relation to knots or other defects such that the strength of
members wil not be reduced.
Scarf joints, finger joints and splice plates: Do not use without approval.
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440
PROCESSING TREATED TIMBER
• Cutting and machining: Carry out as much as possible before treatment.
• Extensively processed timber: Retreat timber sawn lengthways, thicknessed, planed,
ploughed, etc.
• Surfaces exposed by minor cutting/ dril ing: Treat with two flood coats of a solution
recommended by main treatment solution manufacturer.
450
MOISTURE CONTENT
• Moisture content of wood and wood based products at time of instal ation: Not more than:
-
Covered in general y unheated spaces: 24%.
-
Covered in general y heated spaces: 20%.
20%.
510
PROTECTION
• General y: Keep timber dry and do not overstress, distort or disfigure sections or
components during transit, storage, lifting, erection or fixing.
• Timber and components: Store under cover, clear of the ground and with good ventilation.
Support on regularly spaced, level bearers on a dry, firm base. Open pile to ensure free
movement of air through the stack.
Trussed rafters: Keep vertical during handling and storage.
ERECTION AND INSTALLATION
750
MODIFICATIONS/REPAIRS
• Defects due to detailing or fabrication errors: Report without delay.
• Methods of rectification: Obtain approval of proposals before starting modification or
remedial work.
• Defective/damaged components: Timber members/ components may be rejected if the
nature and/or number of defects would result in an excessive amount of site repair.
760
TEMPORARY BRACING
• Provision: As necessary to maintain structural timber components in position and to
ensure complete stability during construction.
770
ADDITIONAL SUPPORTS
• Provision: Position and fix additional studs, noggings and/ or battens to support edges of
sheets materials, and wal / floor/ ceiling mounted appliances, fixtures, etc. shown on
drawings
• Material properties: Additional studs, noggings and battens to be of adequate size and
have the same treatment, if any, as adjacent timber supports.
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J30 Liquid applied tanking/ damp proofing
To be read with Preliminaries/General conditions
TYPES OF TANKING/ DAMP PROOFING
110B
BITUMEN/ RUBBER WATERPROOFER
• Manufacturer: Ruberoid Building Products, member of the IKO Group.
-
Web: www.ruberoid.co.uk.
-
Email: [email address].
-
Product reference: Ruberprufe
Application: 3 coats at 2.25 m²/L each.
EXECUTION
205
SUITABILITY OF SUBSTRATE
• Substrates general y:
-
Smooth, even textured, clean, dry and frost free.
-
Within tolerances for level and surface regularity.
-
Vertical and horizontal surfaces: Correctly prepared and free from irregularities.
• Curing period for concrete substrates (minimum): 7 days.
• Moisture content and stability of substrate: Must not impair integrity of finished tanking/
damp proofing.
• Preliminary work: Complete including:
-
Chases.
-
External angles.
-
Formation of upstands and kerbs.
-
Movement joints.
Penetrations/ Outlets.
206
ADHESION TESTING
• Tensile bond strength: Test in accordance with BS EN ISO 4624.
Test results: Submit.
207
PRIMERS
• Application: Uniform, continuous coverage.
210
COATING APPLICATION
• Adjacent surfaces exposed to view in finished work: Protect.
• Coatings:
-
Apply in dry atmospheric conditions when as per manufacturers instructions.
-
Uniform, continuous coverage. Do not al ow to pool in hol ows.
-
Firmly adhered to substrate and free from imperfections.
-
Prevent damage to finished coatings.
• Penetrations: Impervious.
Final covering: Apply as soon as possible after coating has hardened.
220
COLD APPLIED COATINGS
• Thinning: Not permitted unless recommended by manufacturer.
• Successive coats:
-
Al ow to dry before applying next.
Apply at right angles to previous.
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COMPLETION
310
INSPECTION
Interim and final inspections: Submit reports.
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J40 Flexible sheet tanking/ damp proofing
To be read with Preliminaries/ General conditions.
TYPES OF TANKING/ DAMP PROOFING
120
LOOSE LAID POLYETHYLENE DAMP PROOFING
• Substrate: Concrete slab with trowel ed finish.
• Manufacturer: Contractor'
s choice.
-
Product reference: Contractor's choice.
• Thickness/ Gauge: 300 micrometres (1200 gauge).
• Joints:
-
Surface to be joined: Clean and dry beyond ful width of joint.
-
Laps (minimum): End and side, 150 mm.
-
Sealing: Continuous mastic strip between overlaps; edge of top sheet sealed with
jointing tape.
WORKMANSHIP
310
WORKMANSHIP GENERALLY
• Condition of substrate:
-
Clean and even textured, free from voids and sharp protrusions.
-
Moisture content: Compatible with damp proofing/ tanking.
• Air and surface temperature: Do not apply sheets if below minimum recommended by
membrane manufacturer.
• Condition of membrane at completion:
-
Neat, smooth and ful y supported, dressed wel into abutments and around intrusions.
-
Completely impervious and continuous.
-
Undamaged. Prevent puncturing during fol owing work.
Permanent overlying construction: Cover membrane as soon as possible.
360
JUNCTIONS WITH PROJECTING DPCS/ CAVITY TRAYS
• Adjoining surfaces: Clean and dry.
• Dpcs/ Cavity trays: Lap and ful y bond/ seal with sheeting.
-
Laps (minimum): 100 mm.
Bonding/ Sealing: Mastic tape.
365
JUNCTIONS WITH FLUSH DPCS/ CAVITY TRAYS
• Adjoining surfaces: Clean and dry.
• Dpcs/ Cavity trays:
-
Expose edge where concealed.
-
Lap and ful y bond/ seal sheeting to wal .
-
Dressing of sheeting beyond dpc/ cavity tray (minimum): 50 mm.
Bonding/ Sealing: Mastic tape.
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3/23
K10 Plasterboard dry linings/ partitions/ ceilings
To be read with Preliminaries/ General conditions.
TYPES OF DRY LINING
245
CEILING LINING ON TIMBERsw battens in toilets
• Background: 50x50 sw battens.
• Metal resilient (acoustic) bars: Not required.
• Linings: 12 mm plasterboard.
-
Fixings: Contractor's choice.
• Finishing: Skim coat plaster.
-
Primer/ Sealer: Not required.
-
Accessories: n/a.
Other requirements: n/a.
275
ENCASEMENT ON TIMBER FRAMINGto steel beams
• Timber framework: 44 x 44 mm with noggings at 600 mm maximum centres..
• Linings: Two layers 12.5 mm plasterboard.
-
Fixing: Nails.
• Finishing: Skim coat plaster.
-
Primer/ Sealer: Primer to painted areas.
-
Accessories: Metal beads/ stops recommended by board manufacturer .
Other requirements: .
GENERAL/ PREPARATION
335
ADDITIONAL SUPPORTS
• Framing: Accurately position and securely fix to give ful support to:
-
Partition heads running paral el with, but offset from main structural supports.
-
Fixtures, fittings and service outlets. Mark framing positions clearly and accurately on
linings.
-
Board edges and lining perimeters, as recommended by board manufacturer to suit type
and performance of lining.
COMPONENTS
401
GYPSUM PLASTERBOARD
• Type: To BS 1230-1, type 1.
-
Core density (minimum): 650 kg/m³.
Exposed surface and edge profiles: Suitable to receive specified finish.
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INSTALLATION
435
DRY LININGS GENERALLY
• General: Use fixing, jointing, sealing and finishing materials, components and instal ation
methods recommended by board manufacturer.
• Cutting plasterboards: Neatly and accurately without damaging core or tearing paper
facing.
-
Cut edges: Minimize and position at internal angles wherever possible. Mask with bound
edges of adjacent boards at external corners.
• Fixings boards: Securely and firmly to suitably prepared and accurately level ed
backgrounds.
• Finishing: Neatly to give flush, smooth, flat surfaces free from bowing and abrupt changes
of level.
445
CEILINGS
• Sequence: Fix boards to ceilings before instal ing dry lined wal s and partitions.
• Orientation of boards: Fix with bound edges at right angles to supports and with ends
staggered in adjacent rows.
Two layer boarding: Stagger joints between layers.
560
JOINTS BETWEEN BOARDS
• Tapered edged plasterboards:
-
Bound edges: Lightly butted.
-
Cut/ unbound edges: 3 mm gap.
• Square edged plasterboards: 3 mm gap.
Square edged fibre reinforced gypsum boards: 5 mm gap.
570
HORIZONTAL JOINTS
• Surfaces exposed to view: Horizontal joints not permitted. Seek instructions where height
of partition/ lining exceeds maximum available length of board.
• Two layer boarding: Stagger joints between layers by at least 600 mm.
• Edges of boards: Support using additional framing.
Two layer boarding: Support edges of outer layer.
610
FIXING PLASTERBOARD TO TIMBER
• Fixing to timber: Securely at the fol owing centres (maximum):
-
Nails: 150 mm.
-
Screws to partitions/ wal linings: 300 mm. Reduce to 200 mm at external angles.
-
Screws to ceilings: 230 mm.
• Position of nails/ screws from edges of boards (minimum):
-
Bound edges: 10 mm.
-
Cut/ unbound edges: 13 mm.
Position of nails/ screws from edges of timber supports (minimum): 6 mm.
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FINISHING
650
LEVEL OF DRY LINING ACROSS JOINTS
• Sudden irregularities: Not permitted.
• Joint deviations: Measure from faces of adjacent boards using methods and straightedges
(450 mm long with feet/ pads) to BS 8212, clause 3.3.5.
-
Tapered edge joints:
Permissible deviation (maximum) across joints when measured with feet resting on
boards: 3 mm.
-
External angles:
Permissible deviation (maximum) for both faces: 4 mm.
-
Internal angles:
Permissible deviation (maximum) for both faces: 5 mm.
670
SEAMLESS JOINTING TO PLASTERBOARDS
• Cut edges of boards: Lightly sand to remove paper burrs.
• Fil ing and taping: Fil joints, gaps and internal angles with jointing compound and cover
with continuous lengths of paper tape, ful y bedded.
• Protection of edges/ corners: Reinforce external angles, stop ends, etc. with specified
edge/ angle bead.
• Finishing: Apply jointing compound. Feather out each application beyond previous
application to give a flush, smooth, seamless surface.
• Nail/ screw depressions: Fil with jointing compound to give a flush surface.
Minor imperfections: Remove by light sanding.
680
SKIM COAT PLASTER FINISH
• Plaster type As recommended by board manufacturer..
-
Thickness: 2-3 mm.
• Joints: Fil and tape except where coincident with metal beads.
• Finish: Tight, matt, smooth surface with no hol ows, abrupt changes of level or trowel
marks.
692
RIGID BEADS/STOPS
• Internal: To BS EN 13658-1.
External: To BS EN 13658-2.
695
INSTALLING BEADS/ STOPS
• Cutting: Neatly using mitres at return angles.
• Fixing: Securely using longest possible lengths, plumb, square and true to line and level,
ensuring ful contact of wings with substrate.
• Finishing: After joint compounds/ plasters have been applied, remove surplus material
while stil wet from surfaces of beads exposed to view.
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K13 Rigid sheet fine linings and panelling
To be read with Preliminaries/ General conditions.
TYPES OF LINING AND PANELLING
110
WOOD PANELLING to stage wal and elsewhere if indicated on the drawings
• Substrate: n/a.
• Battens: Softwood free from decay and active insect attack and with no knots wider than
half the width of the section.
-
Finished size: to match existing.
-
Moisture content at time of fixing (maximum): 18%.
-
Spacing (centres): to match existing.
-
Method of fixing: Plugged and screwed at 600 mm centres.
• Panel ing:
-
Materials: General y to BS EN 942.
Wood species: Oak, English (Quercus robur) to match existing.
Appearance class: J2.
-
Panels: to match existing.
-
Fire retardant impregnation treatment: not required.
-
Finish (to match approved sample): Two coats of bees wax to match existing.
-
Moisture content at time of fixing: 9-13%.
-
Method of fixing: to match existing.
-
Joint treatment: n/a.
Adhesive: To BS EN 204, type D2 if required.
• Included features: Cut outs for central brass gril e.
• Accessories: concealed hinges, touch latches and budget lock.
Joinery workmanship: As section Z10.
GENERAL REQUIREMENTS
260
ENVIRONMENTAL CONDITIONS
• General requirements prior to starting work specified in this section: Building weathertight;
wet trades completed and affected areas dried out.
• Temperature and humidity before, during and after fixing lining/ panel ing: Maintained at
levels approximating to those which wil prevail after building is occupied.
FABRICATION/ FIXING/ FINISHING
310
ACCURACY OF FABRICATION
• Site dimensions: Take as necessary before starting fabrication.
-
Discrepancies with drawings: Report without delay and obtain instructions before
proceeding.
• Permissible deviations for panels:
-
Length: ± 1.5 mm.
-
Width: ± 1.5 mm.
-
Squareness (taking the longer of 2 sides at a corner as a baseline and measuring the
deviation of the shorter side from the baseline perpendicular): ± 1.5 mm in 1 m.
-
Flatness (of panels with a core thickness of 12 mm and over, as delivered to site): ± 1
mm under a 600 mm straightedge.
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350
FIXING LININGS AND PANELLING
• Setting out: Accurate, true to line and level, free from undulations and lipping, with lines
and joints aligned, straight and paral el unless specified otherwise.
• Movement al owance: Adequate for future moisture and temperature movement of boards.
• Fixing of panels: Secure, to prevent pul ing away, bowing, or other movement during use.
• Methods of fixing and fasteners: As section Z20 unless specified otherwise.
• Trims: Wherever possible, to be in unjointed lengths between angles or ends of runs.
-
Running joints: Where unavoidable, submit proposals for location and method of
jointing.
440A
IRONMONGERY
brass piano hinge and budget lock to cut out oak panel ing concealing new electrical
480
CLEAR FINISHED WOOD
• Nail holes: Fil ed with stopping coloured to match wood.
• Prepared surface: Smooth, closed and free from sanding marks.
Finish: Smooth, free from brush marks, nibs, sags, runs and other defects.
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K21 Wood strip/ board fine flooring/ linings
To be read with Preliminaries/ General conditions.
TYPES OF FLOORING/ LINING
GENERAL/ PREPARATION
280
EXISTING WOOD FLOORING
• Condition: Boards securely fixed and acceptably level. Protruding fasteners punched in or
countersunk.
FIXING/ FINISHING
335
TREATED TIMBER
• Surfaces exposed by minor cutting and dril ing: Treated with two flood coats of a solution
recommended for the purpose by main treatment solution manufacturer.
370
FINISH TO FLOORING
• Exposed fastener heads: Punched or set below surface and fil ed with stopping to match
wood.
• Strips/ Boards: Sanded to give a clean, smooth and flush surface free from score marks.
Finish: 3no coats of lacquer .
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L20 Doors/ shutters/ hatches
To be read with Preliminaries/ General conditions.
GENERAL
115
FIRE RESISTING DOORS/ DOORSETS/ ASSEMBLIES
• Evidence of fire performance: Provide certified evidence, in the form of a product
conformity certificate, directly relevant fire test report or engineering assessment, that
each door/ doorset/ assembly supplied wil comply with the specified requirements for fire
resistance if tested to BS 476-22, BS EN 1634-1 or BS EN 1634-3. Such certification must
cover door and frame materials, glass and glazing materials and their instal ation,
essential and ancil ary ironmongery, hinges and seals.
PRODUCTS
410
WOOD DOORSETS- FD30 FIRE RESISTING TO NEW CLOAK ROOM
• Manufacturer: Contractor'
s choice.
-
Product reference: .
• Door leaf:
-
Facings: to match existing.
-
Lippings: to match existing.
-
Finish as delivered: to be able to match existing.
• Frame and architraves:
-
Wood species: Softwood.
-
Finish as delivered: to be able to match existing.
• Preservative treatment: Not required.
• Glazing details: if applicable to be georgian wired glazing - tbc.
• Ironmongery: to match existing ironmongery.
• Perimeter seals: tbc.
• Other requirements: to be solid core doors with sw beading to form panel ing to match
existing doors.
Fixing: to match existing.
410A
WOOD DOORSETSTO TOILETS
• Manufacturer: Contractor'
s choice.
-
Product reference: .
• Door leaf:
-
Facings: to match existing.
-
Lippings: to match existing.
-
Finish as delivered: to be able to match existing.
• Frame and architraves:
-
Wood species: Softwood.
-
Finish as delivered: to be able to match existing.
• Preservative treatment: Not required.
• Glazing details: n/a.
• Ironmongery: to match existing ironmongery.
• Perimeter seals: tbc.
• Other requirements: to be solid core doors with sw beading to form panel ing to match
existing doors.
Fixing: to match existing.
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EXECUTION
710
PROTECTION OF COMPONENTS
• General: Do not deliver to site components that cannot be instal ed immediately or placed
in clean, dry, floored and covered storage.
• Stored components: Stacked on level bearers, separated with spacers to prevent damage
by and to projecting ironmongery, beads, etc.
730
PRIMING/ SEALING
• Wood surfaces inaccessible after instal ation: Primed or sealed as specified before fixing
components.
750
FIXING DOORSETS
• Timing: After associated rooms have been made weathertight and the work of wet trades
is finished and dried out.
790
FIXING OF WOOD FRAMES
• Spacing of fixings (frames not predril ed): Maximum 150 mm from ends of each jamb and
at 600 mm maximum centres.
810
FIRE RESISTING SMOKE CONTROL DOORS/ DOORSETS
• Gaps between frames and supporting construction: Fil ed as necessary in accordance with
requirements for certification and/ or door/ doorset manufacturer's instructions.
830
FIXING IRONMONGERY GENERALLY
• Fasteners: Supplied by ironmongery manufacturer.
-
Finish/ Corrosion resistance: To match ironmongery.
• Holes for components: No larger than required for satisfactory fit/ operation.
• Adjacent surfaces: Undamaged.
Moving parts: Adjusted, lubricated and functioning correctly at completion.
840
FIXING IRONMONGERY TO FIRE RESISTING DOOR ASSEMBLIES
• General: Al items fixed in accordance with door leaf manufacturer'
s recommendations
ensuring that integrity of the assembly, as established by testing, is not compromised.
• Holes for through fixings and components: Accurately cut.
-
Clearances: Not more than 8 mm unless protected by intumescent paste or similar.
• Lock/ Latch cases for fire doors requiring > 60 minutes integrity performance: Coated with
intumescent paint or paste before instal ation.
850
LOCATION OF HINGES
• Primary hinges: Where not specified otherwise, positioned with centre lines 250 mm from
top and bottom of door leaf.
• Third hinge: Where specified, positioned to match existing .
• Hinges for fire resisting doors: Positioned in accordance with door leaf manufacturer'
s
recommendations.
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L40 General glazing
To be read with Preliminaries/ General conditions.
GENERAL REQUIREMENTS
150
WORKMANSHIP GENERALLY
• Glazing general y: To BS 6262.
• Integrity: Glazing must be wind and watertight under al conditions with ful al owance
made for deflections and other movements.
• Dimensional tolerances: Panes/ sheets to be within ± 2 mm of specified dimensions.
• Materials:
-
Compatibility: Glass/ plastics, surround materials, sealers, primers and paints/ clear
finishes to be used together to be compatible. Avoid contact between glazing panes/
units and alkaline materials such as cement and lime.
-
Protection: Keep materials dry until fixed. Protect insulating glass units and plastics
glazing sheets from the sun and other heat sources.
152
PREPARATION
Surrounds, rebates, grooves and beads: Clean and prepare before instal ing glazing.
155
GLASS GENERALLY
• Standards: To BS 952 and relevant parts of:
-
BS EN 572 for basic soda lime silicate glass.
-
BS EN 1096 for coated glass.
-
BS EN 1748-1 for borosilicate glass.
-
BS EN 1748-2 for ceramic glass.
-
BS EN 1863 for heat strengthened soda lime silicate glass.
-
BS EN 12150 for thermal y toughened soda lime silicate safety glass.
-
BS EN 12337 for chemical y strengthened soda lime silicate glass.
-
BS EN 13024 for thermal y toughened borosilicate safety glass.
-
BS EN ISO 12543 for laminated glass and laminated safety glass.
• Panes/ sheets: Clean and free from obvious scratches, bubbles, cracks, rippling, dimples
and other defects.
-
Edges: General y undamaged. Shel s and chips not more than 2 mm deep and
extending not more than 5 mm across the surface are acceptable if ground out.
160
LINEAR PATTERNED/ WIRED GLASS
• Alignment: Vertical/ Horizontal as appropriate, and pattern matched across adjacent panes
in close proximity.
TYPES OF GLAZING
210A
GLAZING GENERALLY
Any replacement glazing is to be instal ed to match the eixsting.
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550
GLASS MIRRORSto toilets
• Mirror material: Float glass, silvered to give maximum reflection, free from tarnishing,
discoloration, scratches and other defects visible in the designed viewing conditions.
-
Thickness: 4 mm .
-
Backing: .
-
Edge treatment: .
• Background: fixed into sw timber frame .
• Fixing method: Dome top wood screws with polyethylene sleeves and washers at 600 mm
centres .
• Instal ation: Fixed accurately and securely without overtightening fasteners, to provide a
flat surface giving a distortion free reflection.
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M10 Cement based levelling/ wearing screeds
To be read with Preliminaries/General conditions.
TYPES OF SCREED
110
BONDED CEMENT:SAND LEVELLING SCREEDSwhere required
• Substrate: various.
• Screed construction: Ful y bonded.
• Thickness:
-
Nominal: 30 mm.
-
Minimum: 25 mm.
-
Maximum: 40mm.
• Mix:
-
Proportions (cement:sand): 1:3-4.5.
• In situ crushing resistance (ISCR) category: A (3 mm maximum indentation).
• Flatness/ Surface regularity: Maximum permissible deviation: SR2.
• Finish: Wood floated, as clause 520.
-
To receive: vinyl sheet flooring.
Other requirements: None.
GENERALLY/PREPARATION
210
SUITABILITY OF SUBSTRATES
• General:
-
Suitable for specified levels and flatness/ regularity of finished surfaces. Consider
permissible minimum and maximum thicknesses of screeds.
-
Sound and free from significant cracks and gaps.
• Concrete strength: To BS 8204-1, Table 2.
• Cleanliness: Remove plaster, debris and dirt.
• Moisture content: To suit screed type. New concrete slabs to receive ful y or partial y
bonded construction must be dried out by exposure to the air for minimum six weeks.
215
SURFACE HARDNESS OF SUBSTRATES TO RECEIVE POLYMER MODIFIED
WEARING SCREEDS
• General: Substrates must restrain stresses that occur during setting and hardening of
wearing screeds.
• Test for surface hardness: To BS EN 12504-2 using a rebound hammer with compliance
values selected from the fol owing:
Screed thickness
Rebound hammer value
_______________________________________________
15 mm or less
Greater than 25
Greater than 15 mm
Greater than 30
_______________________________________________
• Report: Submit details of areas where substrates surface hardness does not comply with
these values.
220
PROPRIETARY LEVELLING/WEARING SCREEDS
• General: Materials, mix proportions, mixing methods, minimum/maximum thicknesses and
workmanship must be in accordance with recommendations of screed manufacturer.
Standard: To BS 8204-3.
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255
PIPE DUCTS/ TRUNKING
• Preformed access ducts: Before laying screed, fix securely to substrates and level
accurately in relation to finished floor surface.
260
FULLY BONDED CONSTRUCTION
• Preparation: General y in accordance with BS 8204-1.
• Removing mortar matrix: Shortly before laying screed, expose coarse aggregate over
entire area of hardened substrate.
• Texture of surface: Suitable to accept screed and achieve a ful bond over complete area.
Bonding coat: Manufacturer's standard.
BATCHING/MIXING
302
CEMENTS
Cement types: In accordance with BS 8204-1, clause 5.1.3.
305
AGGREGATES
• Sand: To BS EN 13139.
-
Grading limits: In accordance with BS 8204-1, Table B.1.
• Coarse aggregates for fine concrete level ing screeds:
-
Standard: To BS EN 12620.
-
Designation: 4/10.
• Lightweight aggregates: To BS 8204-1, Annex A.
307
ADMIXTURES
• Standard: In accordance with BS 8204-1, Table 1.
Calcium chloride: Do not use in admixtures.
330
MIXING
• Water content: Minimum necessary to achieve ful compaction, low enough to prevent
excessive water being brought to surface during compaction.
• Mixing: Mix materials thoroughly to uniform consistency. Mixes other than no-fines must
be mixed in a suitable forced action mechanical mixer. Do not use a free fal drum type
mixer.
• Consistency: Use while sufficiently plastic for ful compaction.
Ready-mixed retarded screed mortar: Use within working time and site temperatures
335
IN SITU CRUSHING RESISTANCE (ISCR)
• Standards and category: To BS 8204-1, table 4.
-
Testing of bonded and unbonded screeds: To Annex D.
Testing of floating level ing screeds: To Annex E.
340
ADVERSE WEATHER
• Screeds surface temperature: Maintain above 5°C for a minimum of four days after laying.
Hot weather: Prevent premature setting or drying out.
LAYING
345
LEVEL OF SCREED SURFACES
Permissible deviation: (al owing for thickness of coverings) ±7 mm from datum.
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355
FLATNESS/ SURFACE REGULARITY OF FLOOR SCREEDS
• Standard: To BS 8204-1, Table 5.
• Test: To BS 8204-1, Annex C.
Sudden irregularities: Not permitted.
405
JOINTS IN LEVELLING SCREEDS GENERALLY
• Laying screeds: Lay continuously using '
wet screeds' between strips or bays. Minimize
defined joints.
Daywork joints: Form with vertical edge.
FINISHING/CURING
510
FINISHING GENERALLY
• Timing: Carry out al finishing operations at optimum times in relation to setting and
hardening of screed material.
• Prohibited treatments to screed surfaces:
-
Wetting to assist surface working.
Sprinkling cement.
530
SMOOTH FLOATED FINISH
Finish: Even texture with no ridges or steps.
650
CURING
• General: Prevent premature drying. Immediately after laying, protect surface from wind,
draughts and strong sunlight. As soon as screed has set sufficiently, closely cover with
polyethylene sheeting.
• Curing period (minimum): Keep polyethylene sheeting in position for: period recommended
by screed manufacturer.
• Drying after curing: Al ow screeds to dry gradual y. Do not subject screeds to artificial
drying conditions that wil cause cracking or other shrinkage related problems.
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M20 Plastered/ Rendered/ Roughcast coatings
To be read with Preliminaries/ General conditions.
TYPES OF COATING
210
LIGHTWEIGHT GYPSUM PLASTERto basement wal s where required according to the
drawings
• Substrate: as per NBS clause J30/110B.
-
Preparation: Not required - The final coat of Ruberprufe should be blinded with clean
sharp sand while stil tacky as per NBS clause J30/110B.
• Manufacturer: Contractor'
s choice.
• Undercoats: To BS EN 13279-1.
-
Product reference: Contractor's choice.
-
Thickness (excluding dubbing out and keys): Two coat 13 mm overal .
• Final coat: Finish plaster to BS EN 13279-1.
-
Product reference: Contractor's choice.
-
Thickness: 2-3 mm.
-
Finish: Smooth.
Accessories: Beads and stops .
280A
THISTLE MULTI FINISH
• Manufacturer: British Gypsum Ltd.
-
Web: www.british-gypsum.com.
-
Email: [email address].
Product reference: Thistle Multi Finish
GENERAL
413
SAMPLES
• General: Provide representative samples of the fol owing: Replacement mouldings if
required.
421
SCAFFOLDING
General: Prevent putlog holes and other breaks in coatings.
424
SPECIAL PROTECTION OF HISTORIC PLASTERWORK
• General: Prevent damage and disturbance to retained plasterwork.
Protection methods: Submit proposals.
PREPARING SUBSTRATES
510
SUITABILITY OF SUBSTRATES
• Soundness: Free from loose areas and significant cracks and gaps.
• Cutting, chasing, making good, fixing of conduits and services outlets and the like:
Completed.
• Tolerances: Permitting specified flatness/ regularity of finished coatings.
• Cleanliness: Free from dirt, dust, efflorescence and mould, and other contaminants
incompatible with coatings.
541
BONDING AGENT APPLICATION
• General: Apply evenly to substrate to achieve effective bond of plaster/ render coat.
Protect adjacent joinery and other surfaces.
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551
REMOVAL AND RENEWAL OF EXISTING PLASTER/ RENDER
• Location and extent: Agree, at least on a provisional basis, before work commences.
Minimize extent of removal and renewal.
566
REMOVING DEFECTIVE EXISTING PLASTER
• Plaster for removal: Detached, soft, friable, badly cracked, affected by efflorescence or
otherwise damaged.
-
Hol ow, detached areas: Obtain instructions.
• Stained plaster: Remove.
• Removing defective plaster. Cut back to a square, sound edge.
• Faults in substrate (structural deficiencies, damp, etc.): Submit proposals.
• Cracks:
-
Fine hairline cracking/ crazing: Leave.
-
Other cracks: Cut out to a width of 75 mm (minimum).
Dust and loose material: Remove from exposed substrates and edges.
568
EXISTING DAMP AFFECTED PLASTER/ RENDER
• Plaster affected by rising damp: Remove to a height of 300 mm above highest point
reached by damp or 1 m above dpc, whichever is higher.
• Perished and salt contaminated masonry:
-
Mortar joints: Rake out.
-
Masonry units: Submit proposals.
• Faults in substrate (structural deficiencies, additional sources of damp, etc.): Submit
proposals.
• Drying out substrates: Establish drying conditions. Leave wal s to dry for as long as
possible before plastering.
Dust and loose material: Remove from exposed substrates and edges.
584
RECORD CASTINGS
• Timing: Make castings before commencing repair work, to enable accurate reproductions
to be made.
• Items for casting: Obtain instructions once on site.
Identification: Mark clearly to identify original location.
587
REPLACING TIMBER LATHS
• Defective plaster and laths: Remove. Prevent disturbance to adjacent sound plaster.
-
Defective laths: Cut back to supporting timbers.
-
Cavities: Keep clear of debris.
• Supports for laths: Sound and firmly fixed. Provide additional supports where necessary.
New lathing: Timber, as clause 626.
589
REFIXING SOUND TIMBER LATHS THROUGH PLASTER
• Application of repair: To loose but otherwise sound laths on sound framework.
• Method: Cut out plaster patches to sound, undercut edges. Screw laths back to framework
using screws and washers.
-
Screws: Brass or stainless steel.
-
Washers: Metal to match screws.
Inner washer: 25mm diameter.
Outer washer: 38mm diameter;mesh size 1.5mm.
-
Fixing centres: .
• Replastering: 1:1 gypsum:lime putty.
Finish: Flush with existing.
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MOULDINGS/ DECORATIVE PLASTERWORK
680
FIBROUS PLASTER MOULDINGSif required
• Type: Reproduction of existing.
• Noggings, bearers, etc. to support mouldings: Accurately position and securely fix.
• Instal ation: True to line and level.
-
Fixing: fixed direct to a wal or soffit, or it can be supported from a grid. Special fixing
techniques may be required for heavy units.
-
Framing, fixing points and joints: Reinforce.
Finishing: Smooth, to correct profile and with flush joints.
689
IN SITU RUN PLASTER MOULDINGSif required
• Template profile: Give notice before commencing setting out.
• Core mix: Retarded 1:3 gypsum:coarse stuff (coarse stuff 1:3 lime:sand.
-
Keying: Key surface of core and undercoats.
• Mitres: Form as running out work proceeds.
• Final coats: Run to a consistent profile with sharp arrises.
-
Mix: Gypsum:lime putty 1:2 or 1:1 where a harder mix is required.
• Keying for enrichments: Lightly scour contact areas of final coat.
Finishing: Clean off droppings and clean out mitres.
692
REFIXING EXISTING PLASTER MOULDINGS
• Substrates: Accurate, secure and clean.
-
Suction control: Dampen or apply suitable sealer.
• Instal ation: True to line and level with abutting mouldings, on solid bed of gypsum based
adhesive.
-
Additional fixings: Stainless steel dowels located into rear of moulding and background.
• Finishing: Smooth, to correct profile and with flush joints.
Fil er: Plaster of Paris.
695
REPRODUCTION OF EXISTING PLASTER MOULDINGS
• Moulds and casts general y: Prepare moulds from original plaster face. Reproduce profiles
and details accurately.
• Quantity of moulds: Sufficient to complete the required number of casts and maintain a
consistent appearance.
• Casting material: Plaster of Paris.
• Inserts: As necessary to give strength and rigidity to the mouldings and provide secure
fixings.
697
REPAIRING CRACKS/ STEPS IN PLASTER MOULDINGS
• Preparation: Remove applied ornament and keep for reuse. Cut back plasterwork each
side of cracks. Replace defective timber laths. Remove dust.
-
Suction control: Dampen repair area or apply suitable sealer.
• Plaster: Fol ow, and finish flush with, existing moulding profile.
-
Undercoat: Gypsum gauged coarse stuff compatible with existing.
Key to receive final coat.
-
Final coat: 1:1 gypsum:lime putty.
Applied ornaments: Fix accurately using gypsum based adhesive.
699
REPAIRING HAND MODELLED PLASTERWORK
• Armatures: Stainless steel to suit the relief and profile of the model ing.
New model ing: Lime putty:marble dust:plaster of Paris plus set retarding admixture.
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INTERNAL PLASTERING
710
APPLICATION GENERALLY
• Application of coatings: Firmly and in one continuous operation between angles and joints.
Achieve good adhesion.
• Appearance of finished surfaces: Even and consistent. Free from rippling, hol ows, ridges,
cracks and crazing.
-
Accuracy: Finish to a true plane, to correct line and level, with angles and corners to a
right angle unless specified otherwise, and with wal s and reveals plumb and square.
Drying out: Prevent excessively rapid or localized drying out.
715
FLATNESS/ SURFACE REGULARITY
• Sudden irregularities: Not permitted.
• Deviation of plaster surface: Measure from underside of a straight edge placed anywhere
on surface.
-
Permissible deviation (maximum) for plaster not less than 13 mm thick: 3 mm in any
consecutive length of 1800 mm.
718
JUNCTION OF NEW PLASTERWORK WITH EXISTING
• New plasterwork: Finish flush with original face of existing plasterwork to form a seamless
junction.
725
UNDERCOATS GENERALLY
• General: Rule to an even surface. Cross scratch to provide a key for the next coat.
• Undercoats on metal lathing: Work wel into interstices to obtain maximum key.
• Undercoats gauged with Portland cement: Do not apply next coat until drying shrinkage is
substantial y complete.
742
THIN COAT PLASTER
• Preparation for plasters less than 2 mm thick: Fil holes, scratches and voids with finishing
plaster.
777
SMOOTH FINISH
• Appearance: A tight, matt, smooth surface with no hol ows, abrupt changes of level or
trowel marks. Avoid water brush, excessive trowel ing and over polishing.
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M40 Stone/ concrete/ quarry/ ceramic tiling/ mosaic
To be read with Preliminaries/ General conditions.
TYPES OF TILING/ MOSAIC
110
TILING TOWCs
• Tiles: .
-
Manufacturer/ Supplier: Johnson Tiles.
Product reference: Minton Hol ins range.
-
Colour: white.
-
Finish: Glazed.
-
Size: 150 x 75.
-
Thickness:
.
-
Slip potential:
Slip resistance value (SRV) (minimum)/ Pendulum test value (PTV) (minimum) to BS
7932: Not applicable.
Surface roughness (Rz) (minimum) to BS 1134: Not applicable.
• Background/ Base: contractors choice.
-
Preparation: contractors choice.
• Intermediate substrate: Not required.
• Bedding: Thin bed adhesive - solid.
-
Reinforcement: Not applicable.
-
Adhesive: Contractor's choice.
• Joint width: to match what was there orinignal y.
• Grout: to match what was there orinignal y.
-
Type/ classification: Not applicable.
• Movement joints: at internal corners of al rooms.
• Accessories: Crampton capping tiles at top edge, 150mm long strip tiles at external
corners and crampton stop ends.
GENERAL
210
SUITABILITY OF BACKGROUNDS/ BASES
• Background/ base tolerances: To permit specified flatness/ regularity of finished surfaces
given the permissible minimum and maximum thickness of bedding.
• New background drying times (minimum):
-
Concrete wal s: 6 weeks.
-
Brick/ block wal s: 6 weeks.
-
Rendering: 2 weeks.
-
Gypsum plaster: 4 weeks.
• New base drying times (minimum):
-
Concrete slabs: 6 weeks.
Cement:sand screeds: 3 weeks.
PREPARATION
310
EXISTING BACKGROUNDS/BASES GENERALLY
• Efflorescence, laitance, dirt and other loose material: Remove.
• Deposits of oil, grease and other materials incompatible with the bedding: Remove.
• Tile, paint and other nonporous surfaces: Clean.
Wet backgrounds: Dry before tiling.
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330
EXISTING PLASTER
• Defective areas: Remove plaster that is loose, soft, friable, badly cracked or affected by
efflorescence. Cut back to straight horizontal and vertical edges.
Making good: Use plaster or nonshrinking fil er.
FIXING
510
FIXING GENERALLY
• Colour/shade: Unintended variations within tiles for use in each area/room are not
permitted.
-
Variegated tiles: Mix thoroughly.
• Adhesive: Compatible with background/base. Prime if recommended by adhesive
manufacturer.
• Cut tiles: Neat and accurate.
• Fixing: Provide adhesion over entire background/base and tile backs.
• Final appearance: Before bedding material sets, make adjustments necessary to give true,
regular appearance to tiles and joints when viewed under final lighting conditions.
Surplus bedding material: Clean from joints and face of tiles without disturbing tiles.
530
SETTING OUT
• Joints: True to line, continuous and without steps.
-
Joints on wal s: Horizontal, vertical and aligned round corners.
-
Joints in floors: Paral el to the main axis of the space or specified features.
• Cut tiles: Minimize number, maximize size and locate unobtrusively.
• Joints in adjoining floors and wal s: Align.
• Joints in adjoining floors and skirtings: Align.
• Movement joints: Where locations are not indicated, submit proposals.
• Setting out of : Drawing references: .
Setting out of : Submit proposals.
550
FLATNESS/ REGULARITY OF TILING
• Sudden irregularities: Not permitted.
• Deviation of surface: Measure from underside of a 2 m straightedge placed anywhere on
surface. The straightedge should not be obstructed by the tiles and no gap should be
greater than 3 mm.
650
THIN BED ADHESIVE - RIBBED (WALLS)
• Application: Apply 3 mm floated coat of adhesive to dry background in areas of
approximately 1 m². Trowel to ribbed profile.
Tiling: Press tiles firmly onto float coat.
651
THIN BED ADHESIVE - SOLID (WALLS)
• Application: Apply floated coat of adhesive to dry background in areas of about 1 m².
Comb surface.
• Tiling: Apply thin even coat of adhesive to backs of dry tiles. Press tiles firmly onto float
coat.
Finished adhesive thickness (maximum): 3 mm.
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MOVEMENT JOINTS/ GROUTING/ COMPLETION
815
SEALANT MOVEMENT JOINTSIN TILING TO WALLS
• Joints: Extend through tiles and bedding to base/ background. Centre over joints in base/
background.
-
Width:
.
• Sealant: contractors choice .
-
Colour: white .
Preparation and application: As section Z22.
855
CEMENT:SAND GROUTING MIX
• Grout mix:
-
Cement: Portland cement to BS EN 197-1 type CEM I/42.5.
-
Sand:
Joint widths of 6 mm or greater: To BS 1199, table 1, Type B.
Joint widths of 3-6 mm: To BS 5385-5, table 2.
-
Proportions (cement:sand): 2–3 mm wide, use 1:1. 3–6 mm wide, use 1:2..
-
Pigment: n/a.
Mixing: Mix thoroughly. Use the minimum of clean water needed for workability.
875
GROUTING
• Sequence: Grout when bed/adhesive has set sufficient to prevent disturbance of tiles.
• Joints: 6 mm deep (or depth of tile if less). Free from dust and debris.
• Grouting: Fil joints completely, tool to profile, clean off surface. Leave free from
blemishes.
Profile: Flush.
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M50 Rubber/ plastics/ cork/ lino/ carpet tiling/ sheeting
To be read with Preliminaries/ General conditions.
TYPES OF COVERING
150
SHEETING- LINOLEUM
• Location: for the cloak room and chair store.
•
Base: .
-
Preparation: .
• Fabricated underlay: as per manufacturers recommendations.
• Flooring rol : Linoleum to BS EN 548.
-
Manufacturer: Forbo Flooring, PO Box 1, Kirkcaldy, Fife KY1 2SB Tel: 01592 643777
Fax: 01592 643999 E-mail: [email address] Web: www.forbo-flooring.co.uk .
Product reference: Forbo Marmoleum® dual..
-
BS EN 685 class: 23 / 34 / 42..
-
Width: 2000 mm.
-
Thickness: 2.5 mm.
-
Colour/ pattern: tbc.
• Adhesive (and primer if recommended by manufacturer): as per manufacturers
recommendations.
• Seam welding: Hot welding with matching coloured rod..
• Accessories: as required.
• Finishing: As clause 820.
Other requirements: .
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150A
SHEETING- LINOLEUM in the toilets
• Preparation:
Altroproof surface damp proof membrane
Everlay underlay – an underlay, normal y laid loose, which should only be used with Altro
safety flooring, Prismatic Plus and Mondo sheet. It should not be used with AltroSmooth.
• Flooring rol : Homogenous PVC To BS EN 649
Manufacturer: Altro, Works Road, Letchworth, Hertfordshire SG6 1NW. Tel: 01462
707604, Fax: 01462 707504, Email: [email address] Web: www.altro.co.uk
Product reference: Impressionist II
BS EN 685 Class: 43
Width: 2000 mm
Thickness: 2.0 mm
Colour/ pattern: Stucco IP2013 / Canvas IP2009 / Adobe IP2008 / Oasis IP2011 / Arctic
IP2012 / Zen IP2015 / Ore IP2004 / Tranquil IP2017 / Aqua IP2018 / Lunar IP2005 /
Mineral IP2003 / Ebony IP2001 TBC
Consult Altro Floors for samples and availability of colours.
• Adhesive (and primer if recommended by manufacturer): Altrofix . . . as clause 640
Consult with Altro and insert name of appropriate adhesive
When laying onto Altro Everlay 'A' underlayment, lay floor covering in same direction as
underlay, with staggered joints.
Place the material in position on the floor, al owing at least 25 mm each end for trimming,
and overlapping at least 15 mm at joints. Cut-in material along joints. Fold (do not rol ) the
material back along half its length. When adhesive is ready, refold material back onto
adhesive. Repeat for second half of material. Rol with a 50 kg rol er to ensure ful contact
and a good bond overal .
• Seam welding: Hot weld with Altro welding rod by forming a cut groove, 3 mm wide by 2/3
the depth of material, evenly along each joint using either Altro hand grooving tool or an
automatic grooving machine fitted with diamond blade. Hot-weld using Hot Air Welding
Gun (fitted with high speed welding nozzle) and Altro Welding Rod. Select colour of rod to
blend with that of the floor covering. Cut off surplus weld rod with spatula. Do not chemical
weld and as clause 680
• Accessories:
Stair nosings/trim as clause 750
Skirtings as clause 770
• Finishing: Mop wash or lightly machine scrub with Altroclean 44 or equivalent alkaline
cleaner in accordance with clause 820 – Please delete item regarding application of liquid
polish in clause 820 if this is not to be applied to floor finish.
170A
CARPETING
• Manufacturer and product reference is to be confirmed at a later date. Al ow for as per the
description of works.
GENERAL REQUIREMENTS
210
WORKMANSHIP GENERALLY
• Base condition after preparation: Rigid, dry, sound, smooth and free from grease, dirt and
other contaminants.
• Finished coverings: Accurately fitted, tightly jointed, securely bonded, smooth and free
from air bubbles, rippling, adhesive marks and stains.
220
SAMPLES
Covering samples: Before placing orders, submit representative sample of each type.
250
LAYOUT - ROLL MATERIALS
Setting out of seams: Agree setting out for sheeting types M50/ 150A & 170 .
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251
LAYOUT - SEAMS IN ROLL MATERIALS
• Setting out: Minimise occurrences of seams and cross seams.
Cross seams: Not permitted in fol owing locations: n/a.
330
COMMENCEMENT
• Required condition of works prior to laying materials:
-
Building is weathertight and wel dried out.
-
Wet trades have finished work.
-
Paintwork is finished and dry.
-
Conflicting overhead work is complete.
-
Floor service outlets, duct covers and other fixtures around which materials are to be cut
are fixed.
Notification: Submit not less than 48 hours before commencing laying.
340
CONDITIONING
• Prior to laying: Condition materials by unpacking and separating in spaces where they are
to be laid. Maintain resilient flooring rol s in an upright position. Unrol carpet and keep flat
on a supporting surface.
• Conditioning time and temperature (minimum): As recommended by manufacturer with
time extended by a factor of two for materials stored or transported at a temperature of
less than 10°C immediately prior to laying.
350
ENVIRONMENT
• Temperature and humidity: Before, during and after laying, maintain approximately at
levels which wil prevail after building is occupied.
Ventilation: Before during and after laying, maintain adequate provision.
PREPARING BASES
410
NEW BASES
• Suitability of bases and conditions within any area: Commencement of laying of coverings
wil be taken as acceptance of suitability.
420
EXISTING BASES
• Notification: Before commencing work, confirm that existing bases wil , after preparation,
be suitable to receive coverings.
• Suitability of bases and conditions within any area: Commencement of laying of coverings
wil be taken as acceptance of suitability.
430
NEW WET LAID BASES
• Base drying aids: Not used for at least four days prior to moisture content testing.
• Base moisture content test: Carry out in accordance with BS 5325, Annexe A or BS 8203,
Annexe A.
-
Locations for readings: In al corners, along edges, and at various points over area
being tested.
• Commencement of laying coverings: Not until al readings show 75% relative humidity or
less.
440
SUBSTRATES TO RECEIVE THIN COVERINGS
• Trowel ed finishes: Uniform, smooth surface free from trowel marks and other blemishes.
Abrade suitably to receive specified floor covering material.
470
BASES FROM WHICH EXISTING FLOOR COVERINGS HAVE BEEN REMOVED
• Substrate: Clear of covering and as much adhesive as possible. Skim with smoothing
underlayment compound to give smooth, even surface.
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510
WOOD BLOCK FLOORING
• Substrate: Clean and free from wax with al blocks sound and securely bonded. Fil
hol ows with smoothing underlayment compound to give smooth, even surface.
• Missing and loose blocks: Replace and reset in adhesive to match existing. Sand or plane
to make level.
520
TIMBER BOARDING/ STRIP FLOORING
• Substrate: Boards/ strips securely fixed and acceptably level with no protruding fasteners.
Plane, sand or apply smoothing underlayment compound to give a smooth, even surface.
LAYING COVERINGS
620
COLOUR CONSISTENCY
Finished work in any one area/ room: Free from banding or patchiness.
640
ADHESIVE FIXING GENERALLY
• Adhesive type: As specified, as recommended by covering/ underlay, manufacturer or as
approved.
• Primer: Type and usage as recommended by adhesive manufacturer.
• Application: As necessary to achieve good bond.
• Finished surface: Free from trowel ridges, high spots caused by particles on the substrate,
and other irregularities.
650
SEAMS
• Patterns: Matched.
Joints: Tight without gaps.
670
BORDERS/ AND FEATURE STRIPS IN SHEET MATERIAL
• Curl: Not acceptable.
Corners: Mitre joints.
680
SEAM WELDING COVERINGS
• Commencement: At least 24 hours after laying, or after adhesive has set.
Joints: Neat, smooth, strongly bonded, flush with finished surface.
720
DOORWAYS
Joint location: On centre line of door leaf.
750A
STAIR NOSINGS AND TRIMS to gal ery stairs
• Manufacturer: Contractor'
s choice.
-
Product reference: .
• Material/ finish: brass.
• Fixing: Secure, level and with mitred joints. Adjusted to suit thickness of covering with
continuous packing strips of hardboard or plywood. Nosings and packing strips bedded in
gap-fil ing adhesive recommended by nosing manufacturer.
Screw fixing with matching plugs: Required.
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770
SKIRTINGS
• Types: Self-coved.
• Manufacturer: Altro, Works Road, Letchworth, Hertfordshire SG6 1NW. Tel: 01462
707604, Fax: 01462 707504,Email: [email address] Web: www.altro.co.uk.
-
Product reference: Self-coved Skirting
Cove Former: CF20R
Capping Seal: C7WHT – White / C8WHT - White.
Adhesive: Altrofix 25NF Contact Adhesive.
• Fixing: Secure with top edge straight and paral el with floor.
Corners: Mitre joints.
780
TRAFFICKING AFTER LAYING
• Covering types: al coverings.
Traffic free period: Until adhesive is set.
COMPLETION
820A
FINISHINGaltro flooring
• Cleaning operations:
-
Wash floor with water containing neutral (pH 6-9) detergent. If necessary, lightly scrub
heavily soiled areas.
Rinse with clean water, removing surplus to prevent damage to adhesive. Al ow to dry.
880
WASTE
• Spare covering material: Retain suitable material for patching. On completion submit
pieces for selection. Hand over selected pieces to Employer.
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M52 Decorative papers/ fabrics
To be read with Preliminaries/ General conditions.
TYPES OF COVERING
110
COVERING FORwhere existing vinyl wal paper has been removed
• Substrate: Existing papered plaster.
-
Preparation: Remove wal paper. Fil irregularities.
-
Treatment: Contractor's choice Not required.
• Adhesive: To BS 3046, Type 2.
• Lining: As covering manufacturer'
s recommendations.
• Covering: fabric backed wal paper.
-
Manufacturer: Muraspec.
Product reference: fabric backed wal paper.
-
Colour/ pattern: Chateau Range - for the staircases. Astoria Range - for the foyer.
-
Rol width: to fit panels as required.
Other requirements: n/a.
GENERALLY
220
SAMPLES
• General: Submit a representative sample of each type of covering before placing orders.
Size (minimum): Rol width x A length to include pattern repeat.
225
MARKING
• Requirement: In accordance with BS EN 266, wal coverings must state the fol owing on
each rol :
-
Supplier.
-
Product description.
-
Pattern/ batch number.
-
Grade of colour fastness to light.
-
Means of application.
Type of adhesive to be used.
230
EXTRA MATERIAL
• General: Provide extra coverings in clearly identified complete rol s/ lengths as fol ows:
Covering type M52/110: 5% extra.
• Ordering: At same time as instal ed material. Hand over to Employer at completion or
when otherwise agreed.
241
ENVIRONMENT
• Conditions: During hanging and drying of linings/ coverings, maintain working area
ambient temperature and humidity levels approximate to those proposed in service.
251
CONDITIONING
• General: Unwrap coverings and al ow to acclimatize in working area as fol ows: as per
manufacturers instructions.
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PREPARATION
310
PREPARATION GENERALLY
• Preparation materials: Types recommended by their manufacturers and covering
manufacturer for situation and substrate being prepared.
• Substrates: Sufficiently dry in depth to suit covering to be hung.
• Efflorescence salts: Remove.
• Dirt, grease and oil: Remove. Give notice if contamination of substrates has occurred.
• Substrate irregularities: Fil cracks, joints, holes and other depressions with stoppers/
fil ers. Work wel in and finish off flush with surface. Abrade to a smooth finish.
Dust, particles and residues from abrasion: Remove.
330
FIXTURES AND FITTINGS
• Before commencing work: Remove the fol owing: As drawings if required.
On completion of work: Clean and refix when coverings are dry.
350
PAPER/ FABRIC COVERED SUBSTRATES
• Existing coverings: Remove by wet or dry stripping.
• Old adhesive and size: Remove by washing.
• Significant loose or damaged plaster or other degradation of substrates: If revealed, give
notice.
360
VINYL COVERED SUBSTRATES
• Existing covering: Remove peelable vinyl surface.
• Paper base to vinyl: May be retained as a lining if in good condition and firmly adhering.
Stick down lifting edges and corners.
370
ORGANIC GROWTHS
• Loose growths and infected coatings/ decorations: Remove and dispose of.
• Treatment biocide: Apply appropriate solution to growth areas and surrounding surfaces.
• Dead growth: Remove and dispose of.
• Residual effect biocide: Apply appropriate solution to inhibit re-establishment of growths.
• Biocides: Types listed in current Health and Safety Executive (HSE) '
Pesticides', Part B, as
surface biocides.
380
SIZE/ SEALER
• Absorbent substrates: Apply one coat of a dilute solution of adhesive where recommended
by covering manufacturer.
HANGING
420
HANGING GENERALLY
• Coatings on adjacent surfaces:
-
Complete and dry before commencement of hanging coverings.
-
Efflorescene salts: Ensure no recurrence.
• Sequence of hanging coverings:
-
Apply to ceilings before wal s.
-
Commence adjacent to main source of natural light.
-
From centre of feature and isolated wal s.
• Surplus adhesive: Careful y remove from face of coverings, adjacent surfaces and fittings
whilst stil wet.
• Completed coverings: Securely adhered, smooth and free of air bubbles, wrinkles, gaps,
tears, adhesive marks and stains. Joints truly vertical/ horizontal and straight.
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450
SETTING OUT
• Approval of setting out: Obtain before commencement of hanging coverings, for the
fol owing: Covering type M52/110.
480
LININGS
• Type and weight: To suit coverings and substrates.
• Hang lengths: With neat butt joints; do not overlap.
Drying period: Leave for 24 hours before hanging coverings.
490
COVERINGS
• Selvedged coverings: Trim to a true straight edge before hanging, unless overlap joints
are recommended by manufacturer.
• Hanging lengths:
-
Wal coverings: Vertical.
Ceiling coverings: Paral el to main window wal .
500
JOINTS IN COVERINGS
• Butt joints: Hang lengths with neat butt joints general y.
• Overlap joints: Hang lengths with neat overlap joints only where recommended by
covering manufacturer. Cut through joints when stable to a true straight edge, without
damaging substrate, and bond joints.
• Cross joints: Hang lengths in one piece general y. Cross joints are only permitted where
single lengths are impractical.
520
SHADING
• Matching: Ensure colour consistency of adjacent lengths.
• Hanging lengths: Use in sequence as cut from rol .
• Alternate lengths: Do not reverse unless recommended by covering manufacturer.
• Shade variation: Check after hanging first three lengths. If variation occurs, give notice
before proceeding.
530
PATTERN
• Patterned coverings: Accurately align and match.
Mismatches: Anticipate and obtain approval for locations.
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M60 Painting/clear finishing
To be read with Preliminaries/General conditions.
COATING SYSTEMS
110A
ICI PAINTS NBS SPECIFICATIONplease see attached ICI paint specification
• 114BAAF
Building Area: Al previously painted ceiling beds, uppere wal s and
mouldings
Manufacturer - ICI Trade Paints:
Dulux
Surface(s): Painted Wal & Ceiling Surfaces
Preparation and Application: System D14 and ICI Trade Paints SWI.
Number of Finishing Coats: 2
• 114RABG
Building Area: Al previously painted wal s to stairwel s and landings
Manufacturer - ICI Trade Paints:
Dulux
Surface(s): Painted Wal & Ceiling Surfaces
Preparation and Application: System D261S and ICI Trade Paints SWI.
Number of Finishing Coats: 2
Building Area:
Al previously 'papered' wal s etc.
Manufacturer - ICI Trade Paints:
Dulux
Surface(s): Wal & Ceiling Surfaces for Wal coverings
Preparation and Application: System D950 and ICI Trade Paints SWI.
Number of Finishing Coats: 0
• 110FABF
Building Area: Al previously painted wal s to toilets, cloakroom etc.
Manufacturer - ICI Trade Paints:
Dulux
Surface(s): Painted Wal & Ceiling Surfaces
Preparation and Application: System D95S and ICI Trade Paints SWI.
Number of Finishing Coats: 2
• 110CAAG
Building Area: Al previously painted timber joinery to inc: architraves,
skirtings, doors etc.
Manufacturer - ICI Trade Paints:
Dulux
Surface(s): Non-Resinous Softwood, Hardwood etc.
Preparation and Application: System D1041S and ICI Trade Paints SWI.
Number of Finishing Coats: 2
• 110CACV
Building Area: Al previously painted 'crittal' style windows etc.
Manufacturer - ICI Trade Paints:
Dulux
Surface(s): Ferrous
Preparation and Application: System M1967ALK and ICI Trade Paints SWI.
Number of Finishing Coats: 2
• 111KAAG
Building Area: Al previously 'varnished' timber joinery (not polished /
oiled)
Manufacturer - ICI Trade Paints:
Dulux
Surface(s): Non-Resinous Softwood, Hardwood etc.
Preparation and Application: System D1094 and ICI Trade Paints SWI.
Number of Finishing Coats: 2
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N10 General fixtures/ furnishings/ equipment
To be read with Preliminaries/General conditions.
PRODUCTS
235
CURTAINSto stage
• Manufacturer: n/a.
-
Product reference: n/a.
• Standard: To BS 5867-1 and -2.
• Colour/ Pattern: n/a.
• Other requirements: take down existing drapes and pelmet curtains. Overhaul curtain
track. Dry clean curtains and re-hang. Remove al other stage curtains.
235A
DRAPESunderside of gal ery
• Manufacturer: contractors choice.
-
Product reference: plain dyed velveteen.
• Standard: To BS 5867-1 and -2.
• Colour/ Pattern: n/a.
• Other requirements: to match existing in colour, quality and texture. This is to be hung on
a new stainless steel curtain track fixed to the underside of the gal ery.
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N13 Sanitary appliances and fittings
To be read with Preliminaries/ General conditions.
PRODUCTS
300A
WCS AND CISTERNS
• Type: Washdown pan with exposed high level cistern
• Pan:
Standards: Not applicable
Manufacturer: Twyford Bathrooms, Lawton Road, Alsager, Stoke-on-Trent, Staffordshire
ST7 2DF. Tel: 01270 879777 Fax: 01270 873864 Web: www.twyfordbathrooms.com
Product reference: Chantal Ref: CN1138
Material: Vitreous china
Colour: White WH
• Seat and cover:
Not required due to reusing existing timber seats that are to be cleaned and polished
• Pan connector:
Standard: To BS 5627.
Manufacturer: Twyford Bathrooms, as above
Product reference:
WF1241WH – S trap connector.
Colour: White WH
• Cistern:
Standard: Not applicable
Manufacturer: Twyford Bathrooms, as above
Product reference: CN2670WH Chantal high level cistern
Chantal High Level Kit Ref: CF8605CP – supplied with chrome plated lever, brackets and
flush pipe.
Material: Vitreous china
Colour and finish: Soft Cream SC/ Soft White SW/ White WH
• Flushing arrangement: Valveless cistern siphon
Manufacturer: Twyford Bathrooms, as above
Product reference: As supplied
Operation control:
Lever and chain pul chrome plated – Standard for CF8605CP kit.
• Water supply connection: Side supply
Flush volume: 6 litres
• Flush pipe: Exposed
Manufacturer: Twyford Bathrooms, as above
Product reference: As supplied
Material: As supplied
311
DOCUMENT M PACKAGES
• Manufacturer: Twyford Bathrooms, Lawton Road, Alsager, Stoke-on-Trent, Staffordshire
ST7 2DF. Tel: 01270 879777 Fax: 01270 873864 Web: www.twyfordbathrooms.com .
-
Product reference: Doc M rimless super pack with white grab rails and seat PK8146WH.
Pan connector S Trap (White) WF1241WH.
Type approval certificate: Submit.
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315
URINALS AND AUTO FLUSHING CISTERNSto first floor male wcs
• Urinals:
-
Standard: n/a.
-
Manufacturer: Twyford Bathrooms, Lawton Road, Alsager, Stoke-on-Trent, Staffordshire
ST7 2DF. Tel: 01270 879777 Fax: 01270 873864 Web: www.twyfordbathrooms.com .
Product reference: Exposed Slab Urinal 2 Person Pack Ref: FC5102WH
Comprising 2 urinal slabs, 1 RH end, 1 LH end, 1 division and 2 waste outlets.
-
Material: Enamel ed fireclay – White WH .
• Wastes: Grating – 1 per slab unit.
-
Standards: To BS EN 274-1, -2 and -3.
-
Manufacturer: Twyford Bathrooms as above.
Product reference: Urinal waste Ref: WF9371SS.
-
Size: 1½" BSP.
-
Material: Stainless steel.
-
Tail: Unslotted.
• Traps: Consult Twyford Bathrooms technical literature for details.
-
Standards: To BS EN 274-1, -2 and -3.
-
Manufacturer: .
Product reference: .
-
Size:
.
-
Material: .
-
Depth of seal (minimum): 75 mm.
• Cistern, complete with automatic siphon, lid, supports and fixings: .
-
Standard: To BS 1876.
-
Manufacturer: Twyford Bathrooms as above.
Product reference: 1 no Ref: CX8611WH – 1 and 2 stal instal ations, flush capacity 4.5
litres..
-
Material: White vitreous china.
-
Flush volume: 4.5.
-
Operating control: Automatic.
-
Flush pipe: Exposed.
Product reference: 2 stal Ref: SS6152SS.
Material: Stainless steel.
• Accessories: Instal ation kit comprising black tile treads, white riser tiles and Fireclay grout
Ref: FC9202XX – Up to 2 persons.
315A
URINAL CISTERNSto existing urinals
• Additional cistern, flushpipe/spreaders for 5 existing 5 stal urinal Cistern - CX8613WH
(china)
Flushpipe/spreaders 5 person SS6155SS
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335
WASH BASINS
• Manufacturer: Twyford Bathrooms, Lawton Road, Alsager, Stoke-on-Trent, Staffordshire
ST7 2DF. Tel: 01270 879777 Fax: 01270 873864 Web: www.twyfordbathrooms.com .
-
Product reference: Clarice 580 Ref: CL4212 – for 2 tap holes.
• Size: 580 x 455 mm.
• Material: Vitreous china
Colour: White WH .
• Tap/ Chainstay/ Overflow holes: 2 tap holes with overflow and chain stay.
• Water supply fittings: .
-
Manufacturer: Twyford Bathrooms as above.
Product reference: Manhattan chrome plated ½" basin pil ar taps (pair) with cross head
handles Ref: MH5205CP.
-
Operation: Manual.
• Wastes: Plug waste.
-
Standards: To BS EN 274-1, -2 and -3.
-
Manufacturer: Twyford Bathrooms as above.
Product reference: chain waste 1.25x89mm slotted (11 CS) Crome Plated.
-
Size: 1.25x89mm.
-
Material: Crome Plated.
-
Tail: Slotted for overflow.
•
Traps:
.
-
Standards: To BS EN 274-1, -2 and -3.
-
Manufacturer: Twyford Bathrooms as above.
Product reference: White plastics bottle P trap Ref: WF 8482 XX.
-
Size: 1¼" .
-
Material: Plastic.
-
Depth of seal (minimum): 75 mm.
• Accessories: Pedestal Ref: CL4910
Colour: White WH .
442
PAPER TOWEL DISPENSERS
• Manufacturer: Initial Washroom Solutions. Bridge House, Mathisen Way, Colinbrook,
Slough, SL3 0HH, Tel: 01753 766 800. Fax: 020 8868 1072. Email:
[email address] Web: www.initialwashrooms.co.uk .
-
Product reference: Initial Interfold Hand Towel System TBC with English Heritage before
supplying and fitting.
• Material: Stainless steel.
Finish: Brushed finish.
458
SOAP DISPENSERS
• Manufacturer: Initial Washroom Solutions. Bridge House, Mathisen Way, Colinbrook,
Slough, SL3 0HH, Tel: 01753 766 800. Fax: 020 8868 1072. Email:
[email address] Web: www.initialwashrooms.co.uk .
-
Product reference: Initial Tork Liquid Soap Dispenser TBC with English Heritage before
supplying and fitting.
• Material: Stainless steel.
Finish: Brushed finish.
462
TOILET PAPER HOLDERSto match the existing where required
•
Manufacturer:
.
-
Product reference: .
• Material/ finish: .
Finish: .
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472
WARM AIR HAND DRIERS2no in each basement toilet and 1no in al other toilets
• Manufacturer: Initial Washroom Solutions. Bridge House, Mathisen Way, Colinbrook,
Slough, SL3 0HH, Tel: 01753 766 800. Fax: 020 8868 1072. Email:
[email address] Web: www.initialwashrooms.co.uk .
-
Product reference: Initial Whisper Warm Air Dryer.Material: Mild steel with stainless
steel cover
Finish: Brushed finish.
Electrical supply: 240v – 1.6kw.
474
WASTE BINS
• Manufacturer: Initial Washroom Solutions. Bridge House, Mathisen Way, Colinbrook,
Slough, SL3 0HH, Tel: 01753 766 800. Fax: 020 8868 1072. Email:
[email address] Web: www.initialwashrooms.co.uk.
-
Product reference: Initial Brushed Stainless Steel Waste Bin. TBC by English Heritage
before supplying and fitting.
• Material: Stainless steel.
Finish: Brushed finish.
EXECUTION
610
INSTALLATION GENERALLY
• Assembly and fixing: Surfaces designed to fal s to drain as intended.
• Fasteners: Nonferrous or stainless steel.
• Supply and discharge pipework: Fix before appliances.
• Fixing: Fix appliances securely to structure. Do not support on pipework.
• Jointing and bedding compounds: Recommended by manufacturers of appliances,
accessories and pipes being jointed or bedded.
• Appliances: Do not use. Do not stand on appliances.
• On completion: Components and accessories working correctly with no leaks.
Labels and stickers: Remove.
620
NOGGINGS AND BEARERS
• Noggings, bearers, etc. to support sanitary appliances and fittings: Position accurately. Fix
securely.
630
TILED BACKGROUNDS OTHER THAN SPLASHBACKS
• Timing: Complete before fixing appliances.
Fixing appliances: Do not overstress tiles.
650
INSTALLING WC PANS
• Floor mounted pans: Screw fix and fit cover caps over screw heads. Do not use mortar or
other beddings.
Seat and cover: Stable when raised.
660
INSTALLING SLAB URINALS
• Waterproofing of wal s and floor (specified elsewhere): Completed before fixing urinal
components.
• Gap between components: 3 mm.
• Space behind channels and slabs: Grout with 1:5 cement:sand grout.
• Pointing: Rake out joints to 10 mm depth. Point flush with waterproof jointing compound
recommended by urinal manufacturer.
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670
INSTALLING CISTERNS
• Cistern operating components: Obtain from cistern manufacturer.
-
Float operated valve: Matched to pressure of water supply.
• Overflow pipe: Fixed to fal s and located to give visible warning of discharge.
Location: Agreed, where not shown on drawings.
710
INSTALLING TAPS
• Fixing: Secure against twisting.
• Seal with appliance: Watertight.
Positioning: Hot tap to left of cold tap as viewed by user of appliance.
720
INSTALLING WASTES AND OVERFLOWS
• Bedding: Waterproof jointing compound.
Fixing: With resilient washer between appliance and backnut.
755
SEALANT BEDDING AND POINTING
•
Bedding: .
Pointing: Joints between appliances and splashbacks, wal s and floors. .
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P20 Unframed isolated trims/ skirtings/ sundry items
To be read with Preliminaries/ General conditions
200
MEDIUM DENSITY FIBREBOARDin the chair store
•
Manufacturer:
Contractor's choice.
-
Product reference: Contractor's choice.
• Standard: To BS EN 622-5.
-
Type: MDF.H - needs to be waterproof.
-
Formaldehyde class: To BS EN 622-1, Class E1.
• Fire rating: Class 0 as defined in Building Regulations.
• Thickness: 15 mm.
Edges: n/a.
• Finish: Prepared and primed as section M60 .
Support/ Fixing: timber stud as per drawing 040.
200A
MEDIUM DENSITY FIBREBOARDfor stage screen
•
Manufacturer:
Contractor's choice.
-
Product reference: Contractor's choice.
• Standard: To BS EN 622-5.
-
Type: MDF.
-
Formaldehyde class: To BS EN 622-1, Class E1.
• Fire rating: Class 0 as defined in Building Regulations.
• Thickness: 12 mm.
Edges: n/a.
• Finish: Prepared and primed as section M60 .
Support/ Fixing: 75x75 sw framing.
240
PLYWOODas required on drawings
• Manufacturer: Contractor'
s choice.
-
Product reference: Marine ply.
• Face ply species: Contractor'
s choice.
• Appearance class to BS EN 635: Class I/II.
• Bond quality to BS EN 314-2: Class 1.
• Fire rating: Not applicable.
• Thickness: 15mm.
•
Edges:
.
• Finish: Prepared and primed as section M60 .
Support/ Fixing: Brass cups and screws at 450 mm centresstud or as shown on drawings.
EXECUTION
510
INSTALLATION GENERALLY
• Joinery workmanship: As section Z10.
• Metal workmanship: As section Z11.
• Methods of fixing and fasteners: As section Z20 where not specified.
• Straight runs: To be in one piece, or in long lengths with as few joints as possible.
• Running joints: Location and method of forming to be agreed where not detailed.
• Joints at angles: Mitre, unless shown otherwise.
Position and level: To be agreed where not detailed.
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P21 Door/ window ironmongery
To be read with Preliminaries/ General conditions.
GENERAL
120
IRONMONGERY RANGE SELECTED BY CONTRACTOR
• Source: Single co-ordinated range.
• Notification: Submit details of selected range, manufacturer and/ or supplier.
• Principal material/ finish: to match existing - samples to be obtain where required .
Items unavailable within selected range: Submit proposals.
140
SAMPLES
• General: Before placing orders with suppliers submit label ed samples of the fol owing: any
ironmongery required .
-
Conformity: Retain samples on site for the duration of the contract. Ensure conformity of
ironmongery as delivered with label ed samples.
320
DOOR HINGESto match existing
• Manufacturer: Contractor'
s choice .
-
Product reference: .
• Type: to match .
•
Size: .
• Material/ finish: to match .
Other requirements: .
320A
DOOR HINGES
• where required these are to fit in with the existing. These wil need to be approved by
English Heritage before supplying and fitting
410A
OVERHEAD DOOR CLOSERSwhere required
• where required these are to fit in with the existing. These wil need to be approved by
English Heritage before supplying and fitting.
515A
DOOR LOCKS
• where required these are to fit in with the existing. These wil need to be approved by
English Heritage before supplying and fitting.
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P31 Holes, chases, covers and supports for services
To be read with Preliminaries/ General conditions.
EXECUTION
620
HOLES AND CHASES IN IN SITU CONCRETE
• Cast in: Holes larger than 10 mm diameter and chases.
• Cutting and dril ing:
-
Permitted for holes not larger than 10 mm diameter.
Not permitted for holes larger than 10 mm diameter except as indicated on drawings.
650
HOLES, RECESSES AND CHASES IN MASONRY
• Locations: To maintain integrity of strength, stability and sound resistance of construction.
• Sizes: Minimum needed to accommodate services.
-
Holes (maximum): 300 x 300 mm.
• Wal s of hol ow or cel ular blocks: Do not chase.
• Wal s of other materials:
-
Vertical chases: No deeper than one third of single leaf thickness, excluding finishes.
-
Horizontal or raking chases: No longer than 1 m. No deeper than one sixth of the single
leaf thickness, excluding finishes.
• Chases and recesses: Do not set back to back. Offset by a clear distance at least equal to
the wal thickness.
• Cutting: Do not cut until mortar is ful y set. Cut careful y and neatly. Avoid spal ing,
cracking and other damage to surrounding structure.
670
NOTCHES AND HOLES IN STRUCTURAL TIMBER
• General: Avoid if possible.
• Sizes: Minimum needed to accommodate services.
• Position: Do not locate near knots or other defects.
• Notches and holes in same joist: Minimum 100 mm apart horizontal y.
• Notches in joists: Locate at top. Form by sawing down to a dril ed hole.
-
Depth (maximum): 0.125 x joist depth.
-
Distance from supports: Between 0.07 and 0.25 x span.
• Holes in joists: Locate on neutral axis.
-
Diameter (maximum): 0.25 x joist depth.
-
Centres (minimum): 3 x diameter of largest hole.
-
Distance from supports: Between 0.25 and 0.4 of span.
• Notches in roof rafters, struts and truss members: Not permitted.
• Holes in struts and columns: Locate on neutral axis.
-
Diameter (maximum): 0.25 x minimum width of member.
-
Centres (minimum): 3 x diameter of largest hole.
Distance from ends: Between 0.25 and 0.4 of span
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R11 Above ground foul drainage systems
To be read with Preliminaries/ General conditions.
GENERAL
115
ABOVE GROUND FOUL DRAINAGE SYSTEM
• Sanitary and floor drainage outlets: Sanitary fittings as section N13.
• Waste pipework: Plastics.
• Discharge stack and branch pipework: n/a.
• Separate ventilating pipework: n/a.
• Accessories: n/a.
Disposal: To below ground drainage as section R12.
SYSTEM PERFORMANCE
210
DESIGN
• Design: Complete the design of the above ground foul drainage system.
• Standards: To BS EN 12056-1 and BS EN 12056-2, and in accordance with BS EN 12056
-2 National Annexes NA-NG.
-
System type to BS EN 12056-2: System III.
• Proposals: Submit drawings, technical information, calculations and manufacturers'
literature.
220
COLLECTION AND DISTRIBUTION OF FOUL WATER
• General: Quick, quiet and complete, self-cleansing in normal use, without blockage,
crossflow, backfal , leakage, odours, noise nuisance or risk to health.
• Pressure fluctuations in pipework (maximum): ±38 mm water gauge.
Water seal retained in traps (minimum): 25 mm.
EXECUTION
601
INSTALLATION GENERALLY
• Standard: To BS EN 12056-5.
• Components: From the same manufacturer for each type of pipework.
• Electrolytic corrosion: Avoid contact between dissimilar metals where corrosion may occur.
• Plastics and galvanized steel pipes: Do not bend.
• Al owance for thermal and building movement: Provide and maintain clearance as fixing
and jointing proceeds.
• Concealed or inaccessible surfaces: Decorate before starting work specified in this
section.
• Protection:
Purpose made temporary caps: Fit to prevent ingress of debris.
605
PIPE ROUTES
• General: The shortest practical, with as few bends as possible.
-
Bends in wet portion of soil stacks: Not permitted.
Routes not shown on drawings: Submit proposals before commencing work.
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610
FIXING PIPEWORK
• Pipework: Fix securely plumb and/ or true to line. Fix discharge stack pipes at or close
below socket col ar or coupling.
• Branches and low gradient sections: Fix with uniform and adequate fal s to drain
efficiently.
• External y socketed pipes and fittings: Fix with sockets facing upstream.
• Additional supports: Provide as necessary to support junctions and changes in direction.
• Vertical pipes: Provide a load bearing support not less than every storey level. Tighten
fixings as work proceeds so that every storey is self supporting.
• Wal and floor penetrations: Isolate pipework from structure, e.g. with pipe sleeves.
-
Masking plates: Fix at penetrations if visible in the finished work.
Expansion joint sockets: Fix rigidly to the building.
630
JOINTING PIPEWORK - GENERALLY
• General: Joint with materials, fittings and techniques that wil make effective and durable
connections.
• Jointing differing pipework systems: With adaptors intended for the purpose.
• Cut ends of pipes: Clean and square. Remove burrs and swarf. Chamfer pipe ends before
inserting into ring seal sockets.
• Jointing or mating surfaces: Clean and, where necessary, lubricate immediately before
assembly.
• Junctions: Form with fittings intended for the purpose.
• Jointing material: Do not al ow it to project into bore of pipes and fittings.
Surplus flux, solvent jointing materials and cement: Remove from joints.
705
ACCESS FOR TESTING AND MAINTENANCE
• General: Instal pipework with adequate clearance to permit testing, cleaning and
maintenance, including painting where necessary.
Access fittings and rodding eyes: Position to avoid obstruction.
COMPLETION
900
TESTING GENERALLY
• Dates for testing: Give notice.
-
Period of notice (minimum): 2 working days.
• Preparation:
-
Pipework: Securely fixed and free from obstruction and debris.
-
Traps: Fil ed with clean water.
• Testing:
-
Supply clean water, assistance and apparatus.
-
Do not use smoke to trace leaks.
Records: Submit a record of tests.
905
PIPEWORK AIRTIGHTNESS TEST
• Preparation:
-
Open ends of pipework: Temporarily seal using plugs.
-
Test apparatus: Connect a 'U' tube water gauge and air pump to pipework via a plug or
through trap of an appliance.
• Testing: Pump air into pipework until gauge registers 38 mm.
• Required performance: Pressure of 38 mm is to be maintained without loss for at least
three minutes.
915
PREHANDOVER CHECKS
• Temporary caps: Remove.
• Permanent blanking caps, access covers, rodding eyes, floor gratings and the like: Secure
complete with fixings.
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X12 Vertical platform lift systems
To be read with Preliminaries/ General conditions
GENERAL
110A
VERTICAL PASSENGER LIFTTO ENTRANCE LOBBY AS PER DRAWINGS
• Landmark Lifts - offer reference LE 2513-08 rev A for a new 8 person passenger lift
• Stainless Steel framed glass doors
Contact is Simon Mitchel 07974 562324
110B
ENTRANCE PLATFORM LIFTTO ENTRANCE LOBBY AS PER DRAWINGS
• Landmark Lifts - a new low up disabled access platform lift
Contact is Simon Mitchel 07974 562324
SYSTEM PERFORMANCE
PRODUCTS
EXECUTION
630
LAYOUT AND LOCATION
General: As per drawings.
COMPLETION
910
TESTING AND COMMISSIONING
• Standards: as per manufacturers guidance.
• Operational tests: Undertake.
• Test certificate: Submit.
Number of copies: 2 hard copies and 1 electronic copy.
920
ELECTRICAL INSPECTION AND TESTING
Electrical inspection and testing: .
930
NOTICES AND INSTRUCTIONS
• Standard: as per manufacturers guidance.
• Emergency lift evacuation procedure: Include within building health and safety file.
• Wal mounted single line diagrams: Required.
-
Content: Describe the power distribution system serving the lift. Include power sources,
points of isolation and device ratings.
• Circuit charts for switchgear associated with the lift system: Required.
• Instruction manual: Required.
-
Content: Drawings and diagrams necessary for normal use of the lift, emergency use,
rescue, maintenance, repair and periodic checking.
Maintenance instructions: To BS EN 13015.
935
EQUIPMENT LABELLING
• Switches, controls, enclosures and terminations: Clearly and indelibly label describing their
purpose. Identify the off position.
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970
DOCUMENTATION
• Operation and maintenance instructions: Submit.
• Record drawings: Submit.
• Certificates: Submit.
-
Number of copies: 2.
• Instruction manual: Submit.
-
Number of copies: 2.
• Log book: Individual for each lift.
-
Type: Hard back cover embossed with the lift name and unique lift identification
reference with A4 lined paper, minimum 100 pages.
975
TRAINING
• Timing: Before completion.
• Scope to include:
-
Daily lift operation.
-
Routine and general maintenance.
Emergency passenger release procedure.
980
MAINTENANCE
• Servicing and maintenance: Undertake.
Duration: Until 12 months after Practical Completion.
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ICI Paints
Wexham Road
Slough
Berkshire SL2 5DS
England
Switchboard (01753) 550000
Fax (01753) 578218
12 September 2008
Roger Stong
Mouchel - North London Property
ICI Reference: 100501640
Unit 311 Highgate Studios
53-79 Highgate Road
Kentish Town
London
NW5 1TL
Dear Roger
Re: The Auditorium, Islington Town Hall
Upper Street, Islington, London, N1
Following your recent request, it is my pleasure to enclose the systems that I have prepared for The Auditorium.
I trust that the systems are self-explanatory and fully cover the areas and substrates requested.
Important Notes
In order to achieve the optimum results it is extremely important to adhere to the systems and Site Work
Instructions v5 quoted. Please note that ICI Paints will not accept responsibility for any amendments to or
unauthorised usage of the wording contained in the system sheets or in the Site Work Instructions v5.
Prior to the start of the painting contract, Client and Painting Contractor must agree arrangements with regard to
the Site Work Instructions v5 clauses listed below.
1. Section 2: Conditions of Use
Building Repairs/Prior to Paint work
2. Section 2: Conditions of Use
Responsibility to Confirm Surface as Specified
3. Section 6: Colour
All Clauses
To ensure the smooth implementation of the project I would be grateful if you could complete the attached form
once you have appointed a Main Contractor and/or Painting Contractor and return it to me at the above address.
If I can be of any further help, I can be contacted on 0788 543 3976.
Yours sincerely,
Tony Welham
Trade Specifier Account Manager
Fax:
0149 448 2433
e-mail:
[email address]
LEGAL DECLARATION AND WARNING REGARDING COPYRIGHT
This “Prospec” Specification document is, and remains, the property of Imperial Chemical Industries Plc (ICI) and is loaned on
condition that it is used solely to specify products manufactured by ICI and its affiliates and on condition that it shall not be copied in
whole nor in part nor re-utilised in whole or in part except with the permission of ICI and shall be returned to ICI on demand. ICI
reserve the right to charge for the loan of the specification if it is used in contravention of the above conditions. 'Prospec' is provided to
the client on the condition that it is used solely as specified. No alterations or editing of 'Prospec' may be made without the express prior
written permission of ICI. ICI will not accept responsibility for any unauthorised amendments or usage of the systems or Site Work
Instructions contained in 'Prospec'.
© Copyright and Database Right 1998 to 2008 Imperial Chemical Industries PLC (ICI)
Project Notification
From:
Roger Stong
Mouchel - North London Property
Unit 311 Highgate Studios
53-79 Highgate Road
Kentish Town
London
NW5 1TL
To:
Tony Welham
Company:
ICI Paints
Fax:
0149 448 2433
Date:
Time:
Pages:
Please note that I have specified ICI Paints systems on the project listed below. In order to ensure the smooth
implementation of this specification will you please inform your local ICI Account Manager in order that he can
provide commercial and technical assistance as appropriate.
Project Title and Address
ICI Ref.
The Auditorium
100501640
Islington Town Hall
Upper Street
Islington
London
N1
Main Contractor for 100501640
Painting Sub-Contractor for 100501640
Contact Name:
Contact Name:
Address:
Address:
Telephone:
Telephone:
100501640 Contract Start Date:
100501640 Painting Start Date:
100501640 Painting Finish Date:
100501640 Comments:
Data Protection
If you would
not like ICI plc or it's group companies to pass on your details to third parties who may contact
you with offers and services that may be of interest to you, please tick here [ ].
12-Sep-08
Project Ref: 100501640
Page 2 of 29
Specification
Painting Systems
For
Mouchel - North London Property
The Auditorium
Project Ref: 100501640
Roger Stong
Mouchel - North London Property
Unit 311 Highgate Studios
53-79 Highgate Road
Kentish Town
London
NW5 1TL
12 September 2008
12-Sep-08
Project Ref: 100501640
Page 3 of 29
Contents
Covering Letter ................................................................................................................................................1
Project Notification Form .................................................................................................................................2
Front Page........................................................................................................................................................3
Table of Contents.............................................................................................................................................4
Paint Schedule .................................................................................................................................................5
Painting Systems..............................................................................................................................................6
All previously painted ceiling beds, upper walls and mouldings ....................................................................6
All previously painted walls to stairwells and landings..................................................................................8
All previously 'papered' walls etc................................................................................................................ 10
All previously painted walls to toilets, cloakroom etc. ................................................................................. 11
All previously painted timber joinery to inc: architraves, skirtings, doors etc. .............................................. 13
All previously painted 'crittal' style windows etc. ........................................................................................ 15
All previously 'varnished' timber joinery (not polished / oiled) .................................................................... 17
Site Work Instructions.................................................................................................................................... 19
12-Sep-08
Project Ref: 100501640
Page 4 of 29
Paint Schedule
The information below is to identify individual Systems for building areas to be painted.
In order to achieve the optimum results it is extremely important to adhere to the systems and Site Work
Instructions v5 quoted. Please note that ICI Paints will not accept responsibility for any amendments to or
unauthorised usage of the wording contained in the system sheets or in the Site Work Instructions v5.
Prior to the start of the painting contract, Client and Painting Contractor must agree arrangements with
regard to the Site Work Instructions v5 clauses listed below.
1. Section 2: Conditions of Use Building Repairs/Prior to Paint work
2. Section 2: Conditions of Use Responsibility to Confirm Surface as Specified
3. Section 6: Colour
All Clauses
PROJECT: The Auditorium, Islington Town Hall
Upper Street, Islington, London, N1, 100501640
Building Area
Exposure
System
Prev Coating
Condition
Finish
Finish
Colour
Notes
Coats
All previously
Internal
D14
Solvent Based
RMI Preparation
Dulux Trade Flat
2
painted ceiling
Painted
Stages 4-6
Matt
beds, upper walls
and mouldings
All previously
Internal
D261S
Solvent Based
RMI Preparation
Dulux Trade
2
painted walls to
Painted
Stages 4-6
Diamond Matt
stairwells and
landings
All previously
Internal
D950
Wallcoverings
Poor or Unsuitable
Wallcovering
0
'papered' walls etc.
All previously
Internal
D95S
Solvent Based
RMI Preparation
Dulux Trade
2
painted walls to
Painted
Stages 4-6
Diamond Quick
toilets, cloakroom
Drying Eggshell
etc.
All previously
Internal
D1041S
Solvent Based
RMI Preparation
Dulux Trade
2
painted timber
Painted
Stages 4-6
Eggshell
joinery to inc:
architraves,
skirtings, doors etc.
All previously
Internal
M1967ALK
Paint Coating
RMI Preparation
Dulux Trade
2
painted 'crittal' style
Stages 4-6
Eggshell
windows, balusters
etc.
All previously
Internal
D1094
Varnish
RMI Preparation
Dulux Trade Quick
2
'varnished' timber
Stages 4-6
Drying Varnish
joinery (not
polished / oiled)
‘Gold’ effect
Internal
N/A
Clean down and apply two
mouldings
coats of Hammerite
Smooth
IMPORTANT NOTES
Due to the potential deterioration of the existing coatings and/or the potential deterioration of the existing substrates referred to within this
project, the use of these specific project documents are limited to twelve months from their date of origination to the completion of the
painting contract. It is recommended that this documentation be reviewed with ICI Trade Paints when completion of the project is greater
than 24 months from the date of document origination. The origination date is on the front/title page of the specification.
I would draw your attention to the legal declaration below. It is important to remember that these specifications provided by
ICI Paints are
protected by copyright and database
right and are dependent
in performance terms on the use of
ICI Paints system and colour defining
references
. Therefore these
ICI Paints systems and colour defining references cannot be converted to what
appears to be an equivalent
system from another paint manufacturer without subsequent potential loss of performance.
LEGAL DECLARATION AND WARNING REGARDING COPYRIGHT
This “Prospec” Specification document is, and remains, the property of Imperial Chemical Industries Plc (ICI) and is loaned on condition
that it is used solely to specify products manufactured by ICI and its affiliates and on condition that it shall not be copied in whole nor in
part nor re-utilised in whole or in part except with the permission of ICI and shall be returned to ICI on demand. ICI reserve the right to
charge for the loan of the specification if it is used in contravention of the above conditions. 'Prospec' is provided to the client on the
condition that it is used solely as specified. No alterations or editing of 'Prospec' may be made without the express prior written permission
of ICI. ICI will not accept responsibility for any unauthorised amendments or usage of the systems or Site Work Instructions contained in
'Prospec'.
© Copyright and Database Right 1998 to 2008 Imperial Chemical Industries PLC. (ICI)
12-Sep-08
Project Ref: 100501640
Page 5 of 29
All previously painted ceiling beds, upper
walls and mouldings
System Code
Building Area
D14
Ceilings, Cornices, Freize, Upper Walls etc.
Exposure: Internal
Required Finish Coat: Dulux Trade Flat Matt
Substrate: Painted Wall & Ceiling
Finish Coat Type: Water Based
Surfaces
Severity of Exposure: Moderate
Finish Coat Data Sheet: 440
Condition of Surface: RMI Preparation Stages 4-6
Finish Coat Sheen Level: Low
Previous Coating: Solvent Based Painted
Finish Coat Colour See Colour Schedule
Reference:
NBS Reference: 114BAAF
No. of Finish System Coats: 2
ICI Paints Reference: IWL/PTR/SOL/M/RMI/440/2/AspectXPv2008A.S
W5
· Comply at all times with BS 6150: 2006 Code of Practice for Painting of Buildings (or as amended) and BS EN ISO 12944: 1998
Paints and Varnishes - Corrosion Protection of Steel Structures by Protective Paint Systems (or as amended).
· ICI Paints will not accept responsibility for any unauthorised amendments or usage of the wording contained in this System sheet and
in ICI Paint's Site Work Instructions v5.
· In order to achieve the optimum results, it is extremely important to adhere to the systems and ICI Paint's Site Work Instructions v5
quoted.
· Products supplied for the carrying out of this specification are compliant with Statutory Instrument 2005 No. 2773 (Environmental
Protection) - The Volatile Organic Compounds in Paints, Varnishes and Vehicle Refinishing Products Regulations 2005.
Preparation
Important Note
The amount of preparatory work required on a Previously Coated Surface can vary considerably due to a variety
of circumstances. This RMI System is for Preparation Stages 4 – 6# as detailed in 'ICI Condition of Surfaces to
be Coated Tables' (#Stage 7 is for the complete removal of all coatings)
Stage 4 will be to areas where the coating is in good condition and requires only to be cleaned and lightly
abraded where appropriate.
Stage 5 will be to areas where the coating exhibits signs of light failure and/or flaking, and requires cleaning,
scraping back to a sound surface and abraded where appropriate.
Stage 6 will be to areas where significant failure is prevalent and requires the removal of all defective coatings.
Remove all blistered, poorly adhering or otherwise defective coatings. Powdery and friable surface coatings
should be completely removed by scraping, brushing and washing. Thoroughly clean down the surfaces to
remove all dirt grease and surface contaminants;
whilst wet, produce the necessary 'key' for good adhesion
by rubbing down sound areas with waterproof abrasive paper or pads (this is particularly important
when applying water based systems to previous coatings that are known, or suspected to be, solvent
based) and 'feather' broken edges of existing coatings. Rinse off and allow to dry. Allow the surface to fully
dry before proceeding. *Dust off.
Note
*When rubbing down dry and/or dusting off wear a suitable face mask to avoid the inhalation of dust.
(See ICI Trade Paints Site Work Instructions v5 Clause SW4.20 for further information.)
12-Sep-08
Project Ref: 100501640
Page 6 of 29
Priming
If surfaces remain powdery and friable after thorough preparation, they must be sealed with: One coat of
Dulux
Trade Stain Block Plus.
Prime overall with: One coat of
Dulux Trade Diamond Quick Drying Eggshell of appropriate shade thinned
up to 1 part water to 10 parts of product as appropriate.
Priming overall with this coating is essential as it acts as a 'tie' coat between the previously solvent based and the
new water based system.
Making Good
Make good cracks, holes and other imperfections with
Polycell Trade Interior Filler. Allow such making good
to dry out thoroughly. Rub down smooth to match surrounding area and *dust off.
Note *When rubbing down dry and/or dusting off wear a suitable face mask to avoid the inhalation of dust.
(See ICI Trade Paints Site Work Instructions v5 Clause SW4.20 for further information.)
Bring Forward
Bring forward all making good with: One coat of
Dulux Trade Flat Matt of selected shade thinned up to 1 part
water to 5 parts of product as appropriate.
Finishing System
Two coats of
Dulux Trade Flat Matt of selected shade.
© Copyright and Database Right 1998 to 2008 Imperial Chemical Industries PLC.
12-Sep-08
Project Ref: 100501640
Page 7 of 29
All previously painted walls to stairwells and
landings
System Code
Building Area
D261S
General Wall Areas etc.
Exposure: Internal
Required Finish Coat: Dulux Trade Diamond Matt
Substrate: Painted Wall Surfaces
Finish Coat Type: Water Based
Severity of Exposure: Moderate
Finish Coat Data Sheet: 447
Condition of Surface: RMI Preparation Stages 4-6
Finish Coat Sheen Level: Low
Previous Coating: Solvent Based Painted
Finish Coat Colour See Colour Schedule
Reference:
NBS Reference: 114RABG
No. of Finish System Coats: 2
ICI Paints Reference: IWL/PTR/SOL/M/RMI/447/2/AspectXPv2008A.S
W5
· Comply at all times with BS 6150: 2006 Code of Practice for Painting of Buildings (or as amended) and BS EN ISO 12944: 1998
Paints and Varnishes - Corrosion Protection of Steel Structures by Protective Paint Systems (or as amended).
· ICI Paints will not accept responsibility for any unauthorised amendments or usage of the wording contained in this System sheet and
in ICI Paint's Site Work Instructions v5.
· In order to achieve the optimum results, it is extremely important to adhere to the systems and ICI Paint's Site Work Instructions v5
quoted.
· Products supplied for the carrying out of this specification are compliant with Statutory Instrument 2005 No. 2773 (Environmental
Protection) - The Volatile Organic Compounds in Paints, Varnishes and Vehicle Refinishing Products Regulations 2005.
Preparation
Important Note
The amount of preparatory work required on a Previously Coated Surface can vary considerably due to a variety
of circumstances. This RMI System is for Preparation Stages 4 – 6# as detailed in 'ICI Condition of Surfaces to
be Coated Tables' (#Stage 7 is for the complete removal of all coatings)
Stage 4 will be to areas where the coating is in good condition and requires only to be cleaned and lightly
abraded where appropriate.
Stage 5 will be to areas where the coating exhibits signs of light failure and/or flaking, and requires cleaning,
scraping back to a sound surface and abraded where appropriate.
Stage 6 will be to areas where significant failure is prevalent and requires the removal of all defective coatings.
Remove all blistered, poorly adhering or otherwise defective coatings. Powdery and friable surface coatings
should be completely removed by scraping, brushing and washing. Thoroughly clean down the surfaces to
remove all dirt grease and surface contaminants;
whilst wet, produce the necessary 'key' for good adhesion
by rubbing down sound areas with waterproof abrasive paper or pads (this is particularly important
when applying water based systems to previous coatings that are known, or suspected to be, solvent
based) and 'feather' broken edges of existing coatings. Rinse off and allow to dry. Allow the surface to fully
dry before proceeding. *Dust off.
Note
*When rubbing down dry and/or dusting off wear a suitable face mask to avoid the inhalation of dust.
(See ICI Trade Paints Site Work Instructions v5 Clause SW4.20 for further information.)
12-Sep-08
Project Ref: 100501640
Page 8 of 29
Priming
If surfaces remain powdery and friable after thorough preparation, they must be sealed with: One coat of
Dulux
Trade Stain Block Plus.
Prime overall with: One coat of
Dulux Trade Diamond Quick Drying Eggshell of appropriate shade thinned
up to 1 part water to 10 parts of product as appropriate.
Priming overall with this coating is essential as it acts as a 'tie' coat between the previously solvent based and the
new water based system.
Making Good
Make good cracks, holes and other imperfections with
Polycell Trade Interior Filler. Allow such making good
to dry out thoroughly. Rub down smooth to match surrounding area and *dust off.
Note *When rubbing down dry and/or dusting off wear a suitable face mask to avoid the inhalation of dust.
(See ICI Trade Paints Site Work Instructions v5 Clause SW4.20 for further information.)
Bring Forward
Bring forward all making good with: One coat of
Dulux Trade Diamond Matt of selected shade thinned up to
1 part water to 10 parts of product as appropriate.
Finishing System
Two coats of
Dulux Trade Diamond Matt of selected shade.
Recommendations for the cleaning of surfaces coated with Dulux Trade Diamond technology products can be
found in ICI Site Work Instruvtions v5 SW 7.42.
© Copyright and Database Right 1998 to 2008 Imperial Chemical Industries PLC.
12-Sep-08
Project Ref: 100501640
Page 9 of 29
All previously 'papered' walls etc.
System Code
Building Area
D950
Wallcoverings.
Exposure: Internal
Required Finish Coat: Wallcovering
Substrate: Wall Surfaces for
Finish Coat Type: Wallcovering
Wallcoverings
Severity of Exposure: Moderate
Finish Coat Data Sheet: 001
Condition of Surface: Poor or Unsuitable
Finish Coat Sheen Level: N/A
Previous Coating: Wallcoverings
Finish Coat Colour See Colour Schedule
Reference:
NBS Reference:
No. of Finish System Coats: 0
ICI Paints Reference: WCV/PAP/WCV/M/POU/001/0/AspectXPv2008
A.SW5
· Comply at all times with BS 6150: 2006 Code of Practice for Painting of Buildings (or as amended) and BS EN ISO 12944: 1998
Paints and Varnishes - Corrosion Protection of Steel Structures by Protective Paint Systems (or as amended).
· ICI Paints will not accept responsibility for any unauthorised amendments or usage of the wording contained in this System sheet and
in ICI Paint's Site Work Instructions v5.
· In order to achieve the optimum results, it is extremely important to adhere to the systems and ICI Paint's Site Work Instructions v5
quoted.
· Products supplied for the carrying out of this specification are compliant with Statutory Instrument 2005 No. 2773 (Environmental
Protection) - The Volatile Organic Compounds in Paints, Varnishes and Vehicle Refinishing Products Regulations 2005.
Preparatory & Finishing System
Completely remove all existing material. Thoroughly wash down the surfaces to remove all residues of paper,
paste and size. Allow to dry. Rub down or scrape to expose a sound clean surface and *dust off. Make good
cracks, holes and other imperfections with
Polycell Trade Interior Filler. Allow such making good to dry out
thoroughly. Rub down smooth to match surrounding area and *dust off.
Note
*When rubbing down dry and/or dusting off wear a suitable face mask to avoid the inhalation of dust.
(See ICI Trade Paints Site Work Instructions v5 Clause SW4.20 for further information.)
Size the surfaces with
Polycell Trade Ready Mixed Adhesive, thinned for sizing in accordance with the
manufacturer's instructions and allow to dry completely. Ensure that rolls of the same shade number are used for
a complete area. Shade all rolls before hanging.
The wallcovering is to be hung in accordance with the wallcovering manufacturers' instructions using
Polycell
Trade Ready Mixed Adhesive. The face of the wallcovering is to be kept free from paste and any paste on
adjacent surfaces must be removed immediately with a damp sponge.
© Copyright and Database Right 1998 to 2008 Imperial Chemical Industries PLC.
12-Sep-08
Project Ref: 100501640
Page 10 of 29
All previously painted walls to toilets,
cloakroom etc.
System Code
Building Area
D95S
General Wall Areas etc.
Exposure: Internal
Required Finish Coat: Dulux Trade Diamond
Quick Drying Eggshell
Substrate: Painted Wall Surfaces
Finish Coat Type: Water Based
Severity of Exposure: Moderate
Finish Coat Data Sheet: 408
Condition of Surface: RMI Preparation Stages 4-6
Finish Coat Sheen Level: Mid
Previous Coating: Solvent Based Painted
Finish Coat Colour See Colour Schedule
Reference:
NBS Reference: 110FABF
No. of Finish System Coats: 2
ICI Paints Reference: IWL/PTR/SOL/M/RMI/408/2/AspectXPv2008A.S
W5
· Comply at all times with BS 6150: 2006 Code of Practice for Painting of Buildings (or as amended) and BS EN ISO 12944: 1998
Paints and Varnishes - Corrosion Protection of Steel Structures by Protective Paint Systems (or as amended).
· ICI Paints will not accept responsibility for any unauthorised amendments or usage of the wording contained in this System sheet and
in ICI Paint's Site Work Instructions v5.
· In order to achieve the optimum results, it is extremely important to adhere to the systems and ICI Paint's Site Work Instructions v5
quoted.
· Products supplied for the carrying out of this specification are compliant with Statutory Instrument 2005 No. 2773 (Environmental
Protection) - The Volatile Organic Compounds in Paints, Varnishes and Vehicle Refinishing Products Regulations 2005.
Preparation
Important Note
The amount of preparatory work required on a Previously Coated Surface can vary considerably due to a variety
of circumstances. This RMI System is for Preparation Stages 4 – 6# as detailed in 'ICI Condition of Surfaces to
be Coated Tables' (#Stage 7 is for the complete removal of all coatings)
Stage 4 will be to areas where the coating is in good condition and requires only to be cleaned and lightly
abraded where appropriate.
Stage 5 will be to areas where the coating exhibits signs of light failure and/or flaking, and requires cleaning,
scraping back to a sound surface and abraded where appropriate.
Stage 6 will be to areas where significant failure is prevalent and requires the removal of all defective coatings.
Remove all blistered, poorly adhering or otherwise defective coatings. Powdery and friable surface coatings
should be completely removed by scraping, brushing and washing. Thoroughly clean down the surfaces to
remove all dirt grease and surface contaminants;
whilst wet, produce the necessary 'key' for good adhesion
by rubbing down sound areas with waterproof abrasive paper or pads (this is particularly important
when applying water based systems to previous coatings that are known, or suspected to be, solvent
based) and 'feather' broken edges of existing coatings. Rinse off and allow to dry. Allow the surface to fully
dry before proceeding. *Dust off.
Note
*When rubbing down dry and/or dusting off wear a suitable face mask to avoid the inhalation of dust.
(See ICI Trade Paints Site Work Instructions v5 Clause SW4.20 for further information.)
12-Sep-08
Project Ref: 100501640
Page 11 of 29
Priming
If surfaces remain powdery and friable after thorough preparation, they must be sealed with: One coat of
Dulux
Trade Stain Block Plus.
Prime all sound bare areas and areas exposed by the removal of coatings with: One coat of
Dulux Trade
Diamond Quick Drying Eggshell of appropriate shade thinned up to 1 part water to 10 parts of product as
appropriate.
Making Good
Make good cracks, holes and other imperfections with
Polycell Trade Interior Filler. Allow such making good
to dry out thoroughly. Rub down smooth to match surrounding area and *dust off.
Note *When rubbing down dry and/or dusting off wear a suitable face mask to avoid the inhalation of dust.
(See ICI Trade Paints Site Work Instructions v5 Clause SW4.20 for further information.)
Bring Forward
Bring forward all making good with: One coat of
Dulux Trade Diamond Quick Drying Eggshell of selected
shade thinned up to 1 part water to 10 parts of product as appropriate.
Finishing System
Two coats of
Dulux Trade Diamond Quick Drying Eggshell of selected shade.
Recommendations for the cleaning of surfaces coated with Dulux Trade Diamond technology products can be
found in ICI Site Work Instruvtions v5 SW 7.42.
© Copyright and Database Right 1998 to 2008 Imperial Chemical Industries PLC.
12-Sep-08
Project Ref: 100501640
Page 12 of 29
All previously painted timber joinery to inc:
architraves, skirtings, doors etc.
System Code
Building Area
D1041S
Doors, Facings, Skirtings, Screens, Ceiling
Hatches, Staircase Elements, Handrails etc.
Exposure: Internal
Required Finish Coat: Dulux Trade Eggshell
Substrate: Non-Resinous Softwood,
Finish Coat Type: Solvent Based
Hardwood etc.
Severity of Exposure: Moderate
Finish Coat Data Sheet: 405
Condition of Surface: RMI Preparation Stages 4-6
Finish Coat Sheen Level: Mid
Previous Coating: Solvent Based Painted
Finish Coat Colour See Colour Schedule
Reference:
NBS Reference: 110CAAG
No. of Finish System Coats: 2
ICI Paints Reference: IWD/NRS/SOL/M/RMI/405/2/AspectXPv2008A.
SW5
· Comply at all times with BS 6150: 2006 Code of Practice for Painting of Buildings (or as amended) and BS EN ISO 12944: 1998
Paints and Varnishes - Corrosion Protection of Steel Structures by Protective Paint Systems (or as amended).
· ICI Paints will not accept responsibility for any unauthorised amendments or usage of the wording contained in this System sheet and
in ICI Paint's Site Work Instructions v5.
· In order to achieve the optimum results, it is extremely important to adhere to the systems and ICI Paint's Site Work Instructions v5
quoted.
· Products supplied for the carrying out of this specification are compliant with Statutory Instrument 2005 No. 2773 (Environmental
Protection) - The Volatile Organic Compounds in Paints, Varnishes and Vehicle Refinishing Products Regulations 2005.
Preparation
Important Note
The amount of preparatory work required on a Previously Coated Surface can vary considerably due to a variety
of circumstances. This RMI System is for Preparation Stages 4 – 6# as detailed in 'ICI Condition of Surfaces to
be Coated Tables' (#Stage 7 is for the complete removal of all coatings)
Stage 4 will be to areas where the coating is in good condition and requires only to be cleaned and lightly
abraded where appropriate.
Stage 5 will be to areas where the coating exhibits signs of light failure and/or flaking, and requires cleaning,
scraping back to a sound surface and abraded where appropriate.
Stage 6 will be to areas where significant failure is prevalent and requires the removal of all defective coatings.
Completely remove all blistered, poorly adhering or otherwise defective coatings. Open-up all joints which are
not tight fitting and rake out thoroughly. Wash down remaining areas in good condition with soap and water,
detergent solution or suitable solvent to remove all dirt, grease and surface contaminants, rinse off and allow to
dry. Rub down overall to provide a 'key' and 'feather' broken edges of existing coatings.
*Dust off.
Note
*When rubbing down dry and/or dusting off wear a suitable face mask to avoid the inhalation of dust.
(See ICI Trade Paints Site Work Instructions v5 Clause SW4.20 for further information.)
Apply two thin coats of an appropriate knotting solution
to all knots and resinous areas
and allow to harden.
Ensure all surfaces are fully dry before proceeding.
Priming
Spot prime any bare metal, metal fixings nail heads etc with: One coat of
Dulux Trade Metal Primer.
12-Sep-08
Project Ref: 100501640
Page 13 of 29
Prime all bare areas and areas exposed by the removal of coatings with: One coat of
Dulux Trade Wood
Primer thinned up to 1 part White Spirit to 10 parts of product.
Making Good
Make good all nail-holes, open joints and open grain etc. with a
Polycell Trade filler appropriate to the surface
and according to the manufacturer's instructions. Allow making good to dry before being rubbed down smooth
and *dusted off.
Fillers
Use only good quality/compatible materials and follow the manufacturers' recommendations for use, even if at
variance with this system.
Note
*When rubbing down dry and/or dusting off wear a suitable face mask to avoid the inhalation of dust.
(See ICI Trade Paints Site Work Instructions v5 Clause SW4.20 for further information.)
Finishing System
Two coats of
Dulux Trade Eggshell of selected shade.
© Copyright and Database Right 1998 to 2008 Imperial Chemical Industries PLC.
12-Sep-08
Project Ref: 100501640
Page 14 of 29
All previously painted 'crittal' style windows,
metal balusters etc.
System Code
Building Area
M1967ALK
General Metalwork.
Exposure: Internal
Required Finish Coat: Dulux Trade Eggshell
Substrate: Ferrous
Finish Coat Type: Solvent Based
Severity of Exposure: Moderate
Finish Coat Data Sheet: 405
Condition of Surface: RMI Preparation Stages 4-6
Finish Coat Sheen Level: Mid
Previous Coating: Paint Coating
Finish Coat Colour See Colour Schedule
Reference:
NBS Reference: 110CACV
No. of Finish System Coats: 2
ICI Paints Reference: MTL/FER/COT/M/RMI/405/2/AspectXPv2008A.
SW5
· Comply at all times with BS 6150: 2006 Code of Practice for Painting of Buildings (or as amended) and BS EN ISO 12944: 1998
Paints and Varnishes - Corrosion Protection of Steel Structures by Protective Paint Systems (or as amended).
· ICI Paints will not accept responsibility for any unauthorised amendments or usage of the wording contained in this System sheet and
in ICI Paint's Site Work Instructions v5.
· In order to achieve the optimum results, it is extremely important to adhere to the systems and ICI Paint's Site Work Instructions v5
quoted.
· Products supplied for the carrying out of this specification are compliant with Statutory Instrument 2005 No. 2773 (Environmental
Protection) - The Volatile Organic Compounds in Paints, Varnishes and Vehicle Refinishing Products Regulations 2005.
Preparation
Important Note
The amount of preparatory work required on a Previously Coated Metal Surface can vary considerably due to a
variety of circumstances. This RMI System is for Preparation Stages 4 – 6# as detailed in 'ICI Condition of
Metal Surfaces to be Coated Tables' (#Stage 7 is for the complete removal of all coatings)
Stage 4 will be to areas where the coating is in good condition and requires only to be cleaned and lightly
abraded where appropriate.
Stage 5 will be to areas where the coating exhibits signs of light failure and/or flaking. Corrosion may be
evident (0.05% - 1% failure). Requires cleaning, scraping back to a sound surface to remove defective coatings
& corrosion products.Abrade where appropriate.
Stage 6 will be to areas where corrosion may be evident (1% - 8%) and where significant failure is prevalent.
All defective coatings and corrosion products should be removed.
Thoroughly clean down to remove all surface contamination. Carefully scrape back to a firm edge all areas of
defective paint coatings and rub down to 'feather' the broken edges. Scrape and wire brush corroded steel to
produce a clean metal surface. Rub down with a suitable abrasive and *dust off
. All manually prepared surfaces
should be prepared to a minimum standard of St3. BS EN ISO 8501-1: 2001 at the time of coating.
Note
*When rubbing down dry and/or dusting off wear a suitable face mask to avoid the inhalation of dust.
(See ICI Trade Paints Site Work Instructions v5 Clause SW4.20 for further information.)
12-Sep-08
Project Ref: 100501640
Page 15 of 29
Priming
Prime all bare metal with: One coat of
Dulux Trade Metal Primer applied to give a minimum wet film
thickness of 80 microns giving a minimum dry film thickness of 40 microns.
Bring Forward
Bring forward all primed areas with: One coat of
Dulux Trade Eggshell applied to give a minimum wet film
thickness of 58 microns giving a minimum dry film thickness of 26 microns.
Finishing System
Two coats of
Dulux Trade Eggshell each applied to give a minimum wet film thickness of 58 microns per coat,
giving a minimum dry film thickness of 26 microns per coat.
© Copyright and Database Right 1998 to 2008 Imperial Chemical Industries PLC.
12-Sep-08
Project Ref: 100501640
Page 16 of 29
All previously 'varnished' timber joinery (not
polished / oiled)
System Code
Building Area
D1094
Skirtings, Screens, Staircase Elements,
Handrails etc.
Exposure: Internal
Required Finish Coat: Dulux Trade Quick Drying
Varnish
Substrate: Non-Resinous Softwood,
Finish Coat Type: Water Based
Hardwood etc.
Severity of Exposure: Moderate
Finish Coat Data Sheet: 604
Condition of Surface: RMI Preparation Stages 4-6
Finish Coat Sheen Level: Mid/High
Previous Coating: Varnish
Finish Coat Colour See Colour Schedule
Reference:
NBS Reference: 111KAAG
No. of Finish System Coats: 2
ICI Paints Reference: IWD/NRS/VAR/M/RMI/604/2/AspectXPv2008A.
SW5
· Comply at all times with BS 6150: 2006 Code of Practice for Painting of Buildings (or as amended) and BS EN ISO 12944: 1998
Paints and Varnishes - Corrosion Protection of Steel Structures by Protective Paint Systems (or as amended).
· ICI Paints will not accept responsibility for any unauthorised amendments or usage of the wording contained in this System sheet and
in ICI Paint's Site Work Instructions v5.
· In order to achieve the optimum results, it is extremely important to adhere to the systems and ICI Paint's Site Work Instructions v5
quoted.
· Products supplied for the carrying out of this specification are compliant with Statutory Instrument 2005 No. 2773 (Environmental
Protection) - The Volatile Organic Compounds in Paints, Varnishes and Vehicle Refinishing Products Regulations 2005.
Preparation
Important Note
The amount of preparatory work required on a Previously Coated Surface can vary considerably due to a variety
of circumstances. This RMI System is for Preparation Stages 4 – 6# as detailed in 'ICI Condition of Surfaces to
be Coated Tables' (#Stage 7 is for the complete removal of all coatings)
Stage 4 will be to areas where the coating is in good condition and requires only to be cleaned and lightly
abraded where appropriate.
Stage 5 will be to areas where the coating exhibits signs of light failure and/or flaking, and requires cleaning,
scraping back to a sound surface and abraded where appropriate.
Stage 6 will be to areas where significant failure is prevalent and requires the removal of all defective coatings.
Completely remove all blistered, poorly adhering or otherwise defective coatings. Open-up all joints which are
not tight fitting and rake out thoroughly. Wash down remaining areas in good condition with soap and water,
detergent solution or suitable solvent to remove all dirt, grease and surface contaminants, rinse off and allow to
dry. Rub down overall to provide a 'key' (this is particularly important when applying water based systems to
previous coatings that are known, or suspected to be, solvent based) and 'feather' broken edges of existing
coatings. *Dust off.
Note *When rubbing down dry and/or dusting off wear a suitable face mask to avoid the inhalation of dust.
(See ICI Trade Paints Site Work Instructions v5 Clause SW4.20 for further information.)
If required, touch in any primed areas with
Dulux Trade Quick Drying Varnish to match the surrounding
timber for colour and build. Allow to dry.
12-Sep-08
Project Ref: 100501640
Page 17 of 29
Priming
Prime all bare areas and areas exposed by the removal of coatings with One coat of
Dulux Trade Quick Drying
Varnish.
(clear only)
Making Good
Make good all nail holes (nails must be punched below the surface.), open joints and open grain with a suitable
stopper / filler designed for use with a woodstain or varnish system. Allow the material to set before rubbing
down and *dusting off.
Fillers & Stoppers
Use only good quality/compatible materials and follow the manufacturers' recommendations for use, even if at
variance with this system.
Note
*When rubbing down dry and/or dusting off wear a suitable face mask to avoid the inhalation of dust.
(See ICI Trade Paints Site Work Instructions v5 Clause SW4.20 for further information.)
NOTE Linseed oil putty is not suitable for use under woodstains, varnishes or water based systems.
Finishing System
Two coats of
Dulux Trade Quick Drying Varnish.
(Gloss or Satin)
Guidance on depth of colour (Quick Drying Varnish)
Clear Finish: Apply two finishing coats of clear satin or gloss.
Translucent Colour: Apply one coat (Satin Only) of colour followed by one coat of clear (satin or gloss).
Deeper Colour: Apply two coats of colour. (Satin Only)
Note: With any semi-transparent coating the finished appearance will be influenced by the number of coats applied
and the absorbency, texture, colour and general condition of the existing surface or previous coating.
Application Guidance
Note: To ensure an even colour and/or sheen gently stir the varnish at regular intervals during application.
© Copyright and Database Right 1998 to 2008 Imperial Chemical Industries PLC.
12-Sep-08
Project Ref: 100501640
Page 18 of 29
ICI Paints Site Work Instructions v5
Clause Reference
Section 1: Manufacturer and Brand Information
SW 1.01
Manufacturer Details ICI Paints
Wexham Road
Slough
Berkshire
SL2 5DS
SW 1.02
Materials Specified
The materials specified in our system sheets are from
Dulux Trade, ICI Paints High Performance
Coatings, Glidden Trade,
Cuprinol Trade,
Hammerite and
Polycell Trade Product Information Sheets and Safety Data Sheets are obtainable via
www.duluxtrade.co.uk, ICI
Paint Distributors or the Technical Advice Centre by telephone on 0870 242 1100.
SW 1.04
Window Care Systems Limited. Some materials specified in our system sheets are from
Window Care Systems Limited. Product
Information Sheets and Safety Data Sheets are obtainable via ICI Paint Distributors, the Technical
Advice Centre by telephone on 0870 242 1100 or by contacting Window Care Systems Limited
directly on 01487 830311. Further information is available via
www.window-care.com
SW 1.05
Wallcoverings – Manufacturer Guidance ICI Paints do not manufacture wallcoverings, the wallcovering manufacturers' advice should be
sought at all times.
Clause Reference
Section 2: Information on Conditions of Use
SW 2.01
Use of Specified Products
Coating materials to be obtained from the manufacturer and specified brand where indicated. It is not
permissible to substitute the indicated brand. It is the responsibility of the painting contractor to
familiarise him/her with these materials.
SW 2.02
ICI Paints Systems
The ‘
DuSpec & Prospec’ Systems are for Professional use only and are offered as a service to
Specifiers & Contractors who require access to painting systems and represent the most commonly
recommended painting specifications in the U.K. A ‘Bespoke’ Specification Service is available
across the U.K. to Professional Specifiers & Contractors by contacting Dulux Trade Technical Advice
Centre, ICI Paints, Wexham Road, Slough, Berkshire SL2 5DS. Tel: 0870 242 1100. ICI Paints will
not accept responsibility for any unauthorised amendments or usage of the wording contained in the
System sheets or in these Site Work Instructions v5. In order to achieve the optimum results it is
important to adhere to the Systems and Site Work Instructions quoted.
SW 2.03
Relevant Code of Practice
Care and attention must be employed when using the systems and the relevant British Code of
Practice must also be complied with. BS 6150: 2006 Code of Practice for Painting of Buildings (or as
amended) and BS EN ISO 12944: 1998 Paints and Varnishes - Corrosion Protection of Steel
Structures by Protective Paint Systems (or as amended).
SW 2.04
Relevant Information Sheets and Instructions to be Retained on Site
A copy of all the System sheets, Product Information, Health and Safety Information and Site Work
Instructions supplied must be retained on site during the contract period for easy reference by site and
visiting personnel.
SW2.05
Building Repairs / Prior to Paint work
Prior to the start of the painting contract the Client and the Painting Contractor must agree
arrangements with regard to repair work. Prior to Painting repairs to substrates which are to be
coated must be undertaken by the Clients' choice of Contractor in advance of the expected painting
start date. The aforementioned substrates must be dry in depth (where applicable) and have been
accepted by both parties as in a suitable condition to paint. The notification procedures when, during
the painting contract, a painter discovers damaged or missing substrates requiring replacement, must
be in place and be clearly understood. The aforementioned replacement of substrate must be
identified as
not part of the painting contract and must therefore be undertaken by the Clients' choice
of Contractor.
12-Sep-08
Project Ref: 100501640
Page 19 of 29
ICI Paints Site Work Instructions v5
Clause Reference
Section 2: Information on Conditions of Use
SW2.06
Responsibility to Confirm Surface as Specified
It is expected of the
Painting Contractor that he ensures/confirms that the surface to be painted is ‘as
described’ in the System Sheet he is given. If the existing coating is not ‘as described’ (e.g. the
existing coating is Solvent Based and not Water Based or the substrate is Galvanised Metal & not
Ferrous Metal) then it is the
Painting Contractor’s responsibility to report back to the Client and to
then be instructed which alternative System Sheet to use.
SW 2.07
Instructions Provided Separately
Any instructions provided separately must be used in conjunction with the documents supplied.
SW 2.08
Full Extent of Work
Contractors must satisfy themselves as to the full extent of the work to be carried out, whether
mentioned in the documents or otherwise.
SW 2.09
Measurements and Close Inspection
Measurements and close inspection must be made to enable accurate preparation of tenders.
SW 2.10
Representative Access
ICI Paints Representatives must be allowed free access to the work and any access equipment
(ladders etc.) shall be provided by the Contractor immediately on request. The actual percentage of
properties or work inspected and recorded will have been agreed with the client prior to
commencement of the contract.
SW 2.20
COSHH Assessment
The contractor must carry out a full assessment of Risk as required under COSHH Regulations 1994,
(or as amended) before commencing work.
SW 2.21
Preparation of Surfaces / Sequence of Work
The contractor must adhere to the detailed preparation of surfaces and sequence of work as laid down
in these documents.
SW 2.22
Weather Conditions
Exterior, or exposed application, must not be carried out under extreme weather conditions such as
extremes of temperature i.e. below 40 degrees Fahrenheit (5 degrees centigrade) or during rain, fog or
relative humidity above 80%, when such temperatures or RH may be expected or when the surface
temperature fails to reach at least 3 degrees centigrade above the ambient dewpoint.
SW 2.23
Temperature & Humidity Most coatings are dependent on the evaporation of the solvent or thinner at the initial drying stage.
High or Low Temperature and/or High Humidity will affect coating application and can permanently
affect the coating’s performance. It is therefore recommended that application is not carried out when
ambient temperature is below 5 degrees centigrade or when relative humidity exceeds 80%.
Consideration must also be taken regarding the temperature of the surface to which the coating is to
be applied. Refer to
BS 6150: 2006 Code of Practice for Painting of Buildings (or as amended) for
further guidance.
SW 2.24
Log of Ambient Conditions
Keep a log of ambient conditions during the course of the work in line with BS 6150 and ISO 12944:
1998 Paints and Varnishes - Corrosion Protection of Steel Structures by Protective Paint Systems (or
as amended).
SW 2.25
Storage and Thinning
Extremes of temperature and humidity during storage must be avoided. Thinning of materials when
necessary, to be carried out with the type of thinner and in the proportions recommended by ICI
Paints.
SW 2.26
Accurate Logs and Records of Materials and Surfaces
Log all batch numbers and deliveries of materials used and the surface to which they are applied.
SW 2.27
Materials to be Thoroughly Mixed and Stirred
All materials must be thoroughly mixed or stirred before use unless otherwise directed and used in
accordance with instructions from ICI Paints.
SW 2.28
Inspection of First Coats
First coats must not be applied until the surfaces have been inspected by the client and/or his/her
agent.
12-Sep-08
Project Ref: 100501640
Page 20 of 29
ICI Paints Site Work Instructions v5
Clause Reference
Section 2: Information on Conditions of Use
SW 2.29
Inspection of Undercoats / Finishing Coats
No undercoats or finishing coats must be applied until the previous coat has been similarly inspected
and approved by the client and/or his/her agent.
SW 2.30
Effects on Foodstuffs / Commencing Food Operations
Where coating systems are quoted, the user must ensure that they have no harmful effects on the
operatives or foodstuffs. Before re-starting to use foods or raw food materials, or before commencing
any food handling operation, the client or his authorised representative must satisfy himself/herself
that the area is thoroughly clean and free from odour and clear of all painting materials.
SW 2.31
Documentation – Time Limitation
Due to the potential deterioration of the existing coatings and/or the potential deterioration of the
existing substrates referred to within this project, the use of these specific project documents are
limited to twenty - four months from their date of origination to the completion of the painting
contract. It is recommended that this documentation be reviewed with the originator when completion
of the project is greater than twenty - four months from the date of document origination. ICI Paints
will not accept responsibility for any documentation relating to a project that exceeds this twenty -
four period unless the documentation has been reviewed and approved by an ICI representative.
SW 2.32
Volatile Organic Compounds
Products supplied for the carrying out of this specification are compliant with Statutory Instrument
2005 No. 2773 (Environmental Protection) - The Volatile Organic Compounds in Paints, Varnishes
and Vehicle Refinishing Products Regulations 2005.
Clause Reference
Section 3: Substrates
SW 3.10
Walls –Areas of use
The systems for Walls and Ceilings are suitable for
Internal Plaster, Render, Block, Approved Brick
and Concrete, Plasterboards, Paperfaced boards, Cement boards, Calcium Silicate boards and Fibre
Insulation type boards and
External Render, Pebbledash, Tyrolean, Block, Approved Brick,
Concrete, Cement Boards and Calcium Silicate Boards
SW 3.11
Walls – Cleaning & Repairing
See BS 8221:2000 Code of Practice for Cleaning and Surface Repair of Buildings (or as amended).
This gives guidance on cleaning natural stones, brick, terracotta and concrete.
SW 3.12
Walls - External Wall Repairs Building repairs should be carried out in advance of the start of the painting contract. See Clause SW
2.05 for further information.
All loose, hollow or defective rendering should be hacked off, and all large cracks cut out and
defective or spalling bricks and concrete repaired and renewed with a suitable/matching material. All
loose and defective pointing should be raked out and the surface brushed down to remove all dust and
sandy material. The cleaned surface should then be prepared as appropriate and repoint with a
suitable material. Allow to dry out completely. Remove any salts, loose sand or aggregate etc and
*dust off. Cut out and make good cracks, holes and other imperfections with cement and sand and
allow to dry out completely.
*When rubbing down dry and/or dusting off wear a suitable face mask to prevent the inhalation of
dust. See SW 4.20 for further information.
SW 3.20
Wallcoverings – Surface All paintable wallcoverings must be firmly adhering to the surface and be free from paste on the face
side before painting.
SW 3.21
Wallcoverings – Standard Types for Painting Lining papers, Woodchips, Glassfibre Wallcoverings, Duplex Embossed and High or Low Relief -
type papers are purposely made for painting and can generally be painted with conventional emulsion
type paints.
SW 3.22
Wallcoverings – Blown Vinyls Blown Vinyl's can sometimes be painted but will normally require a first coat of a Matt Vinyl
emulsion.
SW 3.23
Wallcoverings – Pulp Type Pulp papers generally can be painted provided the inks do not cause staining.
SW 3.24
Wallcoverings – Putty/Hessian Type Putty - type wallcoverings need to be basecoated with an oil based paint, normally Eggshell.
Hessians can be painted with conventional emulsion type paints but this can look unsightly as it tends
to raise the fibres.
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SW 3.25
Wallcoverings – Unsuitable Types for painting Vinyls, Washables, Silks, Handprints, Flocks, Metallics, etc. generally should
not be painted.
Previously painted wallcoverings are suitable for repainting with a similar type of paint provided the
paper has been successfully painted before.
SW 3.26
Wallcoverings - Shaded
All wallcoverings must be shaded before hanging and used in accordance with the specific
wallcovering manufacturer’s instructions.
SW 3.30
Wood –Areas of use
The systems detailed are for Professional use only and are in two groups of Wood;
Landscape &
Garden Timber and
Joinery which can be Non-Resinous Softwood, Plywood, Hardwood, MDF,
Approved Wood Building Boards etc.
SW 3.31
Wood – Resin & Knots
When encountering knots and resinous areas
to be painted, apply two thin coats of
'Dulux' Trade
Knotting Solution and allow to harden.
SW 3.32
Wood - Arrises
Prior to commencement of work to any window or item of joinery, the contractor may be requested to
carry out an inspection of arrises. Allowance will be deemed to have been made within the tender
sum for arrises to be created which comply with B.S.6150 Section 2 / 5 (Design, Specification and
Organisation) or as amended:- a radius of 1 mm to 2 mm for timber other than sills and thresholds;
sills and thresholds might need a 3 mm rounding.
*When rubbing down dry and/or dusting off wear a suitable face mask to avoid the inhalation of
dust. See SW 4.20 for further information.
SW 3.33
Wood - High Risk Joinery Sections
Where instructed to do so, in all cases, completely remove all coatings from sills, lower horizontal
members of frames and sashes, adjacent vertical rails to the height of 150 mm, and all weatherbars to
doors. For all defective areas, other than those mentioned above, the entire member or section must be
stripped back to the nearest joint.
SW 3.35
Wood - Failed Joinery Sections
Where instructed to do so, use the appropriate Repair Method from the Window Care Systems
document "A Guide to Specifying Pre-Paint Repairs." See Clause
SW 1.04 for further information.
SW 3.36
Wood - Building Repairs / Replacement of Decayed Timber
Building repairs and the replacement of decayed timber with suitably preservative treated wood
should be carried out in advance of the start of the painting contract. See Clause SW 2.05 for further
information. Surfaces should then be allowed to dry out completely before painting.
SW 3.37
Wood - Denatured Woodwork
Failure to remove denatured wood before painting is a common cause of premature paint failure.
Ensure that all denatured wood is completely removed by *manual abrasion or by power sanding to
produce new clean sound wood.
*When rubbing down dry and/or dusting off wear a suitable face mask to avoid the inhalation of dust.
(See SW 4.20 for further information.)
SW 3.50
Metals – Complexity
The complexity of Metal as a Substrate is clearly illustrated on the
Condition of Previous Coating
Table v2 (see Appendix 1). It can be notoriously difficult to identify specific types of metal and, very
often, the type of specialist coatings which are commonly used. We therefore recommend that if you
are in any doubt, you should contact
Dulux Trade Technical Advice Centre, ICI Paints, Wexham
Road, Slough, Berkshire SL2 5DS. Tel: 0870 242 1100 for guidance.
SW 3.60
Plastics – Type of Substrate
There are many grades of plastics, not all of which can be painted. We therefore recommend that if
you are in any doubt, you should contact
Dulux Trade Technical Advice Centre, ICI Paints, Wexham
Road, Slough, Berkshire SL2 5DS. Tel: 0870 242 1100 for guidance.
SW 3.61
Plastics – Pipes & Gutters The plastic most commonly found in the Building Industry is in the form of plastic gutters and pipes.
The surface is generally intended to be self- finished and so maintenance free. (See BS 6150:2006
Section 38 Plastics, or as amended, for further information).
Clause Reference
Section 4: Preparation
SW 4.01
Painted Finishes / BS Code of Practice
The whole of the painted surfaces shall be finished in accordance with
BS 6150: 2006 Code of
Practice for Painting of Buildings (or as amended) and additional requirements quoted.
The surfaces coated should exhibit a fair and even surface of constant colour, substantially free of
brushmarks, fatty edges etc. Each coat shall be allowed to harden and rubbed down before the next
coat is applied.
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SW 4.02
ISO Code of Practice for Metal Finishes (HPC's)
Where
'HPC' coatings are quoted for metal, the whole of the painted surfaces shall be finished in
accordance with
ISO 12944: 1998 Paints and Varnishes - Corrosion Protection of Steel Structures by
Protective Paint Systems (or as amended).
SW 4.10
Dampness
No materials should be applied to surfaces that are structurally or superficially damp. All surfaces
must be free from condensation, dirt etc before and during treatment.
SW 4.11
Efflorescence
Where efflorescence is present, remove fluffy efflorescence deposits by rubbing with dry Hessian
sacking at frequent intervals. Check salts do not return within 48 hours, before proceeding. Remove
hard shiny efflorescence by careful *manual abrasion taking care not to damage the surface finish of
the substrate. On new buildings it is advisable not to use solvent based paints for at least 12 months
as this will allow the surface time to dry out thoroughly.
*When rubbing down dry and/or dusting off wear a suitable face mask to avoid the inhalation of dust.
(See SW 4.20 for further information.)
SW 4.12
Internal Mould Growth
Mould growth on internal surfaces must be treated prior to the application of any subsequent paint
coating. Surfaces which are contaminated with mould should be scraped to remove all heavy deposits
before being treated with
'Dulux' Weathershield Multi-Surface Fungicidal Wash. (By brush only).
After 24 hours rinse off and allow to dry. A second treatment is sometimes required. Ensure all
surfaces are fully dry before proceeding.
Caution 'Dulux' Weathershield Multi-Surface Fungicidal Wash contains Disodium Octaborate and
Benzalkonium Chloride. Read the label before you buy. Use pesticides safely. Fungicidal Wash
should not be allowed to come into contact with foodstuffs.
SW 4.13
External Vegetable, Mould or Algae growth Algae, moss, lichen and mould growths must be removed as far as is practicable by thorough
scraping, followed by brushing with stiff fibre brushes. (Do not use wire brushes as strands can
detach and could appear after re-painting as rust stains).
To kill any residual growth, the affected surface should then be treated with
'Dulux' Weathershield
Multi-Surface Fungicidal Wash. After 24 hours rinse off and allow to dry. A second treatment is
sometimes required. Ensure all surfaces are fully dry before proceeding. Do not apply in wet weather.
Caution 'Dulux' Weathershield Multi-Surface Fungicidal Wash contains Disodium Octaborate and
Benzalkonium Chloride. Read the label before you buy. Use pesticides safely. Fungicidal Wash
should not be allowed to come into contact with foodstuffs.
SW 4.20
Rubbing Down & Dusting Off
When rubbing down use a wet flatting process. Where it is not possible or practical to use a wet
process, wear a suitable face mask when rubbing down dry and/or dusting off to avoid the inhalation
of dust. When it is known or suspected that coatings contain lead refer to Clause SW 4.22 for further
information.
SW 4.22
Lead in Previous Coatings
All Dulux and Glidden paints are free from any added lead. However, the wood and metal surfaces of
the building, especially if it is pre-1960, may have been decorated in the past with a paint made with
lead pigments. Preparation and removal of such paint can be hazardous. For a free leaflet explaining
how the surface should be prepared safely contact:
ICI Paints Technical Group: ICI Paints, Wexham Road, Slough SL2 5DS. Tel: 0870 242 1100
SW 4.23
Fire Protection Systems
Where surfaces have been previously treated with fire retardant, check with the treatment
manufacturer that the specified coating materials are compatible, and do not inhibit its performance.
Inform the client of any discrepancy in coating system details and obtain instructions before
proceeding with application.
SW 4.30
Friable / Powdery Surfaces
Friable or powdery surfaces must be treated with the primer most suited to the substrate prior to the
application of any subsequent compatible coating.
SW 4.31
Opening edges / Undersides of Sills
Ensure that doors and opening windows, etc., are 'eased' as necessary before coating. All opening
edges of doors and windows and undersides of sills are included in the painting work.
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Project Ref: 100501640
Page 23 of 29
ICI Paints Site Work Instructions v5
Clause Reference
Section 4: Preparation
SW 4.41
Glazing – Repair & Replace Where Necessary
All glazing compounds and glazing repairs must comply with BS 8000: Part 7: 1990 (Code of
practice for glazing). Hack out all cracked or defective glazing putties. Remove all defective or loose
beading. Clean the rebates and apply the appropriate priming product to all bare areas. Similarly, treat
beading and any new wood which is to be spliced-in on all faces and edges, i.e. rub down and prime.
REPLACEMENT OF GLAZING COMPOUNDS WHERE NECESSARY: When dry, re-glaze with appropriate glazing compound and allow to harden before further treatment.
The compound manufacturer's recommendations must be adhered to, even if at variance with this
system.
REPLACEMENT OF BEADING WHERE NECESSARY: Bed in suitable external quality mastic in accordance with the manufacturer's instructions and screw
down tightly using non-ferrous fixings.
SW 4.42
Bead Glazing
Joinery to be stained must have the first coat of the staining system applied to rebates and beads
before glazing. Joinery to be varnished must have the first coat of the varnish system applied to
rebates and beads before glazing. Joinery to be painted, with the exception of the
'Dulux' Trade
Weathershield Exterior Gloss system and the
'Dulux' Trade Weathershield Exterior Quick
Drying Satin system, must have the primer applied to rebates and beads before glazing. The
'Dulux'
Trade Weathershield Exterior Gloss system and the
'Dulux' Trade Weathershield Exterior
Quick Drying Satin system, must have the primer and one undercoat applied to rebates and beads
before glazing.
SW 4.43
Putty Glazing
Allow putty to set for at least 7 days and, before a further 14 days, seal the putty with an oil based
primer. Fully coat and protect the putty with a coating system as soon as it is sufficiently hard.
SW 4.50
Stoppers / Fillers
Apply oil based stoppers/fillers after priming. Apply water based stoppers/fillers before priming
unless recommended otherwise by ICI Paints.
SW 4.51
Polycell Trade Fillers
For precise application, completion and storage guidance please refer to the product packaging or
product data sheet. See Clause SW 1.03 for further information.
SW 4.80
Oil and Grease Contaminated Surfaces
For surfaces contaminated with dirt, oil and grease, use an appropriate ‘Oil & Grease Remover’ in
accordance with the Manufacturers instructions for use.
Clause Reference
Section 5: Application
SW 5.01
Suitability of Primers
All primers must be appropriate for the surface and for subsequent coats.
SW 5.02
Staining / Suitable Primers
Contaminated areas that are likely to cause staining, must be treated with the primer most suited to
the type of stain encountered prior to the application of any subsequent compatible coating.
Determine the type of stain and thoroughly clean down the surfaces to remove dirt, grease etc. Rub
down with a suitable abrasive and *dust off. *When rubbing down dry and/or dusting off wear a
suitable face mask to prevent the inhalation of dust. See Clause SW 4.20 for further information.
Prime the affected area with the most appropriate 'sealer' for the staining encountered.
'Dulux' Trade Stain Block Plus (Water Based) for sealing inks, caffeine, biro and scuffs etc.
'Dulux' Trade Aluminium Wood Primer (Solvent Based) for sealing aged-creosote, bitumen, soot,
tar and smoke etc.
'Dulux' Trade Alkali Resisting Primer (Solvent Based) for sealing a wide variety of stains,
including water staining.
'Glidden' Primecoat Primer Sealer (Solvent Based) for sealing a wide variety of stains, including
water staining.
SW 5.10
Ferrous Metal Fixings
Any uncoated metal fixings etc must be primed/pre-treated with the appropriate Metal primer/pre-
treatment prior to the application of any subsequent compatible coating.
SW 5.20
Coating of Prepared Metalwork
Prepared metalwork must be coated as soon as possible on the day of preparation and before the
standard of preparation has deteriorated.
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Project Ref: 100501640
Page 24 of 29
SW 5.21
Overcoating of Prepared Woodwork
Prepared woodwork must be coated as soon as possible on the day of preparation and before the
standard of preparation has deteriorated.
SW 5.22
Application of Finishing Coat
No coatings shall be left in an exposed or unsuitable situation for an undue period before applying the
finishing coat.
SW 5.31
Application Methods
Refer to
BS 6150: 2006 Code of Practice for Painting of Buildings Section 9.3 Application
Methods Page 103 All methods of application are comprehensively dealt with in this Section.
ICI Paints Site Work Instructions v5
Clause Reference
Section 6: Colour
SW 6.01
Good Working Practice When Using Colour
Before application, ensure that all materials are from the same batch. (See Clause SW 2.26). If mixed
batch tins are purchased they should be 'boxed' to avoid potential colour variation. 'Boxing' requires
the mixing together of the different batches in a larger container to ensure consistency of colour.
Colour variation can occur when purchasing a colour for a project from a variety of sources rather
than from one source and/or location. The risk of colour variation, can be reduced by taking the
following action:
(a) Avoid using a mixture of ready mixed colour and in store tinted colour
(b) Avoid using a variety of batch numbers whether ready mixed or in store tinted. For the purpose
of in store tinted colour a batch is considered to be materials tinted on one machine at the same
time.
(c) Purchase sufficient material for the project at one time from the same source of supply tinted on
the same tinting machine. Where this is not appropriate due to storage restrictions, the supplying
merchant may be able to store sufficient quantities in store for call off when required.
It is good working practice to hold back sufficient original material to 'touch up' any areas of damage
to the paint film prior to completion. With some paints and / or colours, especially products with mid
or high sheen and / or deep colours, it may be necessary to recoat the whole area to avoid noticeable
differences in film appearance for example under acute lighting conditions.
SW 6.02
Selection of Colours and Finishes/Trial Areas/Additional Coats
All colours and finishes to be selected and approved by the client or client’s agent. Provision must be
made for the execution of patterns or trial areas on site if required. In general, the quantity of
finishing coats specified are based on ‘as existing’ colours and finish types. Allowance must be made
for any deviation from the standard specification. Additional coats may need to be applied should the
client or client’s agent select colours as described in Clause SW 6.04. ICI Paints will not accept
responsibility for the cost of the application of additional coats when the originator of the
documentation (for example an ICI Paints Representative) has not been informed of the colour
schedule prior to origination of the project documentation.
SW 6.03
Specified - “As Existing” Colour
Many specifications are written on the basis of the finish colour being 'As Existing'. Provision must
be made by the successful Contactor, with the Client, to confirm and agree the ‘actual’ colours to be
applied before application. Should a change of colour be instructed, then agreement must be reached
by all parties as to the possible need for additional coats and the cost significance of such action. (See
all other Clauses on Colour for further guidance.)
SW 6.04
Special Processes Colours When any colour is to be used on rough surfaces, or where a marked change of colour is to be made,
an amended process may be required and the finishing system for that surface amended to include the
additional coats necessary. The finishing system for a surface that is to be significantly lighter than
the previous colour (e.g. from Black to White) may also need to be amended to include the
application of further coats of finish or the use of different colours or products as undercoats prior to
finishing. Some strong colours, such as Poppy and Monarch in the revised BS4800 range, NCS
colours with a colour intensity of 60 or more and also some Colour Palette colours as detailed below,
cannot be made with the same hiding power as ordinary colours if they are to have satisfactory
durability and purity of colour and therefore may require extra coats to be applied to achieve full
opacity. These strong colours, known as 'Special Process Colours' are identified as such in colour
cards from the supplying stockists or the Trade Technical Advice Centre (see below) with specific
instruction on how many coats to apply to achieve full opacity. Some of this information will also be
given on the can labels. This may involve the application of further coats of finish or the use of
different colours or products as undercoats prior to finishing.
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Page 25 of 29
Refer to
BS 6150: 2006 Code of Practice for Painting of Buildings Appendix B: Paint Colours
(or
as amended). See relevant colour card for further guidance.
Colour Guidance
NCS: All colours with a colour intensity of 60 or more. e.g. (10
60-Y10R).
Colour Palette: BB, RB, BG colours with chroma value >350.
Colour Palette: YY, YR, GY colours with chroma value >450.
Colour Palette: RR, GG colours with chroma value >400.
e.g. (45YY 71/
664).
ICI Paints Site Work Instructions v5
Clause Reference
Section 7: Operation and Maintenance
SW 7.01
Chemical Resistance
In a coating system each resin, (Alkyds, Acrylated Rubbers, Epoxies, etc.) will behave in a different
way when exposed to other chemicals. Care must be taken to ensure that the system selected has the
best resistance to the chemicals it will be exposed to once it has been applied.
SW 7.10
Durability in High Wear Areas
An extra coat of the finishing material is recommended to improve durability in high wear/traffic
areas such as doors and handrails.
SW 7.20
Cleaning Specified Surfaces / Removal of Paint Splashes
Where instructions are given not to paint, and to wash or dust clean, this work must be undertaken
prior to painting surrounding areas and should be left clean and free from paint splashes.
SW 7.30
Cleaning Interior of Rainwater Goods
Clean out interior of all gutters, rainwater heads etc.
Thoroughly clean down the surfaces to remove all dirt grease and surface contaminants
.
SW 7.40
Cleaning Maintenance for Internal Walls Finished in Conventional Water Based Paints
Where possible the surface should be lightly brushed or dusted to remove dust etc. When more
intense cleaning is required, gently wash down the surface using a soft sponge and mild detergent
solution to remove dirt and light marking. Heavy pressure should be avoided to reduce the level of
polishing or burnishing of the painted surface. Gently clean down with clean water and remove any
excess water to avoid staring or streaking. Abrasive Cleaners and course cloths should not be used.
SW 7.42
Cleaning Maintenance for Internal Walls Finished in Diamond Technology Water Based Paints
i.e. Dulux Trade Sterishield Diamond Matt, Dulux Trade Diamond Matt, Dulux Trade Diamond QD
Eggshell, Dulux Trade Diamond Matt Light & Space.
Common stains can be removed by cleaning promptly with a soft cloth and clean soapy water. Allow
to dry. Vigorous scrubbing and the use of abrasive cleaners or scourers may impair the finish. Only
apply enough pressure to remove marks. Oil based stains and marks from some pens/felt
tips/permanent markers may not be completely removed. Full durability develops 7 days after initial
application. For information about removing specific stains, please phone ICI Technical Group on
0870 2421100.
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Page 26 of 29
Condition of Surfaces to be Coated
Table 1
Walls
Wood
Floors
Plastics
Stage
Surface to be Coated
Description
ICI ID
1
New
New surface requiring cleaning and minimal
A
preparation to receive surface coating
application.
2
Uncoated
Existing uncoated surface having had some
B
degree of exposure to natural conditions but
(Not Applicable to all Substrates)
requiring minimal preparation
3
Factory Coated/Primed
New or existing surface with factory applied
C
coating or factory applied primer, requiring
(Not Applicable to all Substrates)
some cleaning and preparation.
4
No Breakdown
Coated surface in excellent condition
D
showing no coating failure, minimal cleaning
and preparation required.
5
Light Failure (< 20%)
Coatings showing some breakdown
E
(< 20%) not only in high wear areas, surfaces
will require cleaning down, scraping back of
failed coatings and some minor surface
repairs.
6
Partial Removal
Medium breakdown of existing coatings (20-
F
(20-50% Failure)
50%), failed coatings should be removed and
substrate repairs carried out where
necessary.
7
Heavy Failure/ Incompatible
All coatings must be completely removed
G
Coatings
prior to substrate repairs being carried out
where necessary.
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Page 27 of 29
Condition of Surfaces to be Coated
Table 2
Metals
Stage
Surface to be Coated
Description
ICI ID
1
New Hot Rolled Steel
Grade A, B, C, D as described in BS7079 Part
K
(Heavy Gauge Structural Steel e.g. RSJ’s)
A1 1989 (Specialised Factory Coatings Used)
2
Hot Rolled Steel
Weathered (Uncoated)
1 - 2
Cold Rolled Steel
L
(Light Gauge e.g. Sheeting)
New or Weathered (Uncoated)
&
Cast/Wrought Iron
1 - 2
Hot Dipped Galvanised & Zinc
N
New or Weathered (Uncoated)
1 - 2
Cast Aluminium
Q
New or Weathered (Uncoated)
1 - 2
Polished Extruded Aluminium
R
New or Weathered (Uncoated)
1
Copper, Lead & Brass
S
New
4
Metal - No Breakdown
In excellent condition showing no coating
1 - 3
failure and no signs of rusting. Minimal
Previously factory primed or fully
cleaning and preparation required.
decorative coated metal
5
Light Failure (< 20%)
Showing some breakdown (< 20%) not only in
1 - 3
high wear areas. Corrosion may be evident
(0.05%-1.00% failure). Surfaces will require
Previously factory primed or fully
cleaning-down and scraping back of failed
decorative coated metal
coatings etc.
6
Partial Removal (20-50% Failure)
Medium breakdown of existing coatings (20-
4 - 5
50%). Corrosion may be evident (1%-8%).
Previously factory primed or fully
Surfaces will require cleaning-down and all
decorative coated metal
failed coatings should be removed.
7
Heavy Failure
Significant coating failure (> 50%) and/or
6 - 10
*Significant Rusting
*significant corrosion (>15%)
Incompatible Coatings
All coatings must be completely removed.
*Important Note
Irrespective of the coatings condition, where
Previously factory primed or fully
significant corrosion is evident all previous
decorative coated metal
coatings must be removed.
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Page 28 of 29
Condition of Surfaces to be Coated
Table 3
Wallcoverings
Stage
Surface to be Coated
Description
ICI ID
5
Wallcoverings (good)
Minor breakdown of existing wall coverings.
H
Surfaces should be cleaned down and minor
repairs undertaken e.g. poorly adhering joints
should be dealt with before paint application.
7
Wallcoverings (poor)
Major breakdown of existing wall coverings.
J
Completely remove existing coverings using a
suitable method, repair surfaces as necessary.
12-Sep-08
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Page 29 of 29
Document Outline
