1485 Camberwel Green
77
Q35 Landscape maintenance
To be read with Preliminaries/ General conditions.
GENERALLY
105 MAINTENANCE
OBJECTIVES
•
Location: Camberwell Green.
-
Duration: One year, three years for trees.
•
Aims:
- Enhanced landscape quality;
- Improved landscape visual amenity;
- Provide wildlife habitat and increase biodiversity; and
- To encourage natural woodland regeneration.
•
Restrictions: n/a.
•
Results: As scheduled.
110 NOTICE
•
Give notice before:
-
Application of herbicide.
-
Application of fertilizer.
-
Watering.
-
Each site maintenance visit.
•
Period of notice: 7 days.
130 REINSTATEMENT
•
Damage or disturbance to soil structure, planting, grass, fencing, hard landscaping,
structures or buildings: Reinstate to original condition.
140
CONTROL OF MAMMALIAN PESTS
•
Specialist firms: Submit proposals.
-
Method:
Submit proposals.
155 WATERING
•
Supply: Potable mains water.
•
Quantity: Wet full depth of topsoil .
•
Application: Do not damage or loosen plants.
•
Compacted soil: Loosen or scoop out, to direct water to rootzone.
•
Frequency: As necessary for the continued thriving of all planting.
160 WATER
RESTRICTIONS
•
General: If water supply is, or is likely to be, restricted by emergency legislation, submit
proposals for an alternative suitable source of water. Obtain instructions before
proceeding.
170
DISPOSAL OF ARISINGS
•
General: Unless specified otherwise, dispose of arisings as follows:
-
Biodegradable arisings: Remove to recycling facility.
-
Grass cuttings: Remove from site.
-
Tree roots and stumps: Remove from site.
-
Shrub and tree prunings: Remove to recycling facility.
Litter and nonbiodegradable arisings: Remove from site.
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180
CHIPPING OR SHREDDING
•
General: Not permitted on site.
181 MECHANICAL
EQUIPMENT
•
General: Minimize.
•
Prohibited equipment: Chippers.
•
Timing: Use of mechanical equipment allowed between the hours of 10:00 am and 4:00
pm
only.
190 LITTER
•
Extraneous rubbish not arising from the contract work: Collect and remove from site.
195
PROTECTION OF EXISTING GRASS
•
General: Protect areas affected by maintenance operations using boards/tarpaulins. Do
not place excavated or imported materials directly on grass.
197 CLEANLINESS
•
Soil and arisings: Remove from hard surfaces.
•
General: Leave the works in a clean, tidy condition at completion and after any
maintenance
operations.
GRASSED
AREAS
210
MAINTENANCE OF GRASSED AREAS
•
General: Maintain turf in a manner appropriate to the intended use.
•
Soil and grass:
-
Condition: Maintain a healthy vigorous sward, free from disease, fungal growth,
discolouration, scorch or wilt.
-
Waterlogging and compaction: Prevent.
-
Damage: Repair trampling, abrasion or scalping.
•
Ornamental lawns: Maintain reasonably free from moss, excessive thatch, weeds, frost
heave, worm casts and mole hills.
-
Edges: Neat and well defined, in clean straight lines or smooth flowing curves.
•
Litter and fallen leaves: Remove regularly to maintain a neat appearance.
220
GRASS CUTTING GENERALLY
•
Before mowing: Remove litter, rubbish and debris.
•
Finish: Neat and even, without surface rutting, compaction or damage to grass.
•
Edges: Leave neat and well defined. Neatly trim around obstructions.
•
Adjoining hard areas: Sweep clear and remove arisings.
•
Drought or wet conditions: Obtain instructions.
225 TREE
STEMS
•
Precautions: Do not use mowing machinery closer than 100 mm to tree stems. Use nylon
filament rotary cutters and other hand held mechanical tools carefully to avoid damage to
bark.
235
BULBS AND CORMS IN GRASSED AREAS
•
Before flowering: Do not cut.
•
Interval between end of flowering and start of grass cutting (minimum): Six weeks.
250 LEAF
REMOVAL
•
Operations: Collect fallen leaves.
•
Special requirements: Remove by hand raking.
•
Disposal: Remove from site for recycling.
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265
MOWING GENERAL AREAS
•
Grass height: Maintain between 50 and 75 mm.
•
Arisings: Remove from site.
309
EDGES TO SEEDED AREAS
•
Location: Planting beds and around newly planted trees.
•
Timing: After seeded areas are well established.
•
Edges: Cut to clean straight lines or smooth curves. Draw back soil to permit edging.
•
Arisings: Remove.
311
RE-FORMING GRASS EDGES
•
Location:
- Paths;
- Planting beds; and
- Service access covers.
•
Standard: To BS 7370-3.
•
Finishing: Damaged parts of turned turf top dressed with suitable soil and seed mix
matching the sward.
Support: Not required.
320
LEVELLING HOLLOWS AND BUMPS IN TURF
•
Standard: To BS 7370-3, clauses 12.4 and 12.5.
330 SELECTIVE
HERBICIDE
•
Location: All lawns.
•
Herbicide: Suitable for suppressing perennial weeds, type to be approved before
application.
•
Areas not to be sprayed: Bulb and corm planted areas when in leaf and wildflower.
340
SPOT WEEDKILLING IN ROUGH GRASS AREAS
•
Herbicide: Suitable for suppressing perennial weeds, type to be approved before
application.
•
Operations: Spot treat all broad leaved weeds.
345
CONTROL OF JAPANESE KNOTWEED
•
Operations: Spot treat in June and September during suitable weather conditions and
when plants are growing vigorously.
•
Herbicide: Glyphosate.
•
Application: In accordance with the Environment Agency 'Code of Practice
for the
management, destruction and disposal of Japanese knotweed'.
•
Arisings: In accordance with the Environment Agency 'Code of Practice for the
management, destruction and disposal of Japanese knotweed'.
350
FERTILIZER - SPRING APPLICATION
•
Type: Slow release.
•
Application rate: 60 g/m².
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380
REINSTATEMENT OF DAMAGED LAWNS
•
Damaged turf: Remove to a depth of 40 mm.
•
Preparation: Cultivate substrate to a fine tilth.
•
Reinstatement: Contractor's choice of returfing or topsoiling and reseeding:
-
Returfing: Quality and appearance to match existing.
-
Reseeding: Fill with fine topsoil to BS 3882 multi purpose class, free from stones, debris
and weeds. Reseed with a seed mix to match existing grass in quality and appearance.
•
Protection and watering: Provide as necessary to promote successful germination and/ or
establishment.
FLOWER BEDS/ SEASONAL BEDDINGS
460
BEDS OF PERENNIALS OR PERENNIALS AND ANNUALS
•
Plant supports: Stake and tie plants using flower canes.
-
Length: 400 mm.
-
Maintain throughout the growing season.
•
Gaps in planting: Refill by replanting.
•
Watering:
-
New plants: Before and after planting out.
-
Ongoing: As necessary for the continued thriving of all planting.
•
Operations at end of growing season:
-
Trim: Older flowering stems of herbaceous perennials.
-
Remove: Redundant plant supports, litter, debris and arisings.
-
Cultivate: Fork over the soil, taking care not to cause undue disturbance to plants.
-
Top dress: Apply fertilizer at a rate of 60 g/m².
470
FLOWER BEDS GENERALLY
•
Operations:
-
Remove: Dead flower heads, fallen leaves, litter and debris.
-
Weeds: Thoroughly hand weed.
-
Cultivate: Lightly hoe.
-
Trim: Clip grass edges.
•
Fungicide: Not required.
•
Insecticide: Not required.
490
THINNING BY REMOVAL OF SURPLUS PLANTS
•
Plants to be thinned: as required.
•
Standard: BS 7370-4, clause 3.5.17.1.
•
Timing: Thin when foliage of adjacent plants has begun to touch.
•
Roots:
-
Disturbance to adjacent plants: Minimise.
-
Soil: Refill holes with topsoil to leave an even graded surface.
-
Mulch: Maintain mulch as original specification.
•
Adjacent plants: Make good any minor damage immediately.
•
Plants for retention: Select plants with a strong healthy habit.
•
Mature planting density: as planting schedule .
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SHRUBS/TREES/HEDGES
500
ESTABLISHMENT OF NEW PLANTING
•
Duration: One year, three years for trees.
•
Weed control:
-
Method: Keep planting beds clear of weeds by maintaining full thickness of mulch.
-
Area: Maintain a weed free area around each tree and shrub, minimum diameter the
larger of 1 m or the surface of the original planting pit.
•
Soil condition: Fork over beds to keep soil loose, with gentle cambers and no hollows. Do
not reduce depth or effect of mulch.
•
Watering: When instructed.
502
ESTABLISHMENT OF NEW PLANTING - FERTILIZER
•
Time of year: March or April.
•
Type: Organic.
•
Spreading: Spread evenly. Carefully lift and replace any mulch materials.
Application rate: As manufacturer's recommendations.
510
TREE STAKES AND TIES
•
Inspection/ Maintenance times: As scheduled and immediately after strong winds.
•
Stakes:
-
Replace loose, broken or decayed stakes to original specification.
-
If longer than half of clear tree stem height, cut to this height in spring. Retie to tree
firmly but not tightly with a single tie.
•
Ties: Adjust, refix or replace loose or defective ties, allowing for growth and to prevent
chafing.
-
Where chafing has occurred, reposition or replace ties to prevent further chafing.
•
Removal of stakes and ties: During spring when no longer required to support the tree.
-
Fill stake holes with lightly compacted soil.
515 TREE
GUY
WIRES
•
Inspection/ Maintenance times: Immediately after strong winds.
•
Operations:
-
Replace or resecure loose or missing guy wires.
-
Adjust to suit stem growth and to provide correct and uniform tension.
•
Removal: Immediately after strong winds.
520
REFIRMING OF TREES AND SHRUBS
•
Timing: After strong winds, frost heave and other disturbances.
•
Refirming: Tread around the base until firmly bedded.
•
Collars in soil at base of tree stems, created by tree movement: Break up by fork, avoiding
damage to roots. Backfill with topsoil and refirm.
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540 PRUNING
GENERALLY
•
Pruning: In accordance with good horticultural and arboricultural practice.
-
Removing branches: Do not damage or tear the stem or bark.
-
Wounds: Keep as small as possible and cut cleanly back to sound wood.
-
Cutting: Make cuts above and sloping away from an outward facing healthy bud, angled
so that water will not collect on cut area.
-
Larger branches: Prune neither flush nor leaving a stub, but using the branch bark ridge
or branch collar as a pruning guide.
•
Appearance: Thin, trim and shape each specimen appropriately to species, location,
season, and stage of growth, leaving a well balanced natural appearance.
•
Tools: Use clean sharp secateurs, hand saws or other approved tools. Trim off ragged
edges of bark or wood with a sharp knife.
•
Disease or infection: Give notice if detected.
•
Growth retardants, fungicide or pruning sealant: Do not use unless instructed.
545
PRUNING OF EXCESSIVE OVERHANG
•
Timing: As instructed.
•
Operations: Remove growth encroaching onto grassed areas, paths, roads, signs,
sightlines and road lighting luminaires.
•
Special requirements: None.
550
PRUNING OF EXCESSIVE HEIGHT
•
Timing: As instructed.
Operations: Remove excessive height As instructed.
555
PRUNING TREES AND SHRUBS
•
Standard: To BS 7370-4.
•
Special requirements: None.
570
FORMATIVE PRUNING OF YOUNG TREES
•
Standard: Type and timing of pruning operations to suit the plant species.
•
Time of year: Do not prune during the late winter/ early spring sap flow period.
•
Young trees up to 4 m high:
-
Crown prune by removing dead branches and reducing selected side branches by one
third to preserve a well balanced head and ensure the development of a single strong
leader.
-
Remove duplicated branches and potentially weak or tight forks. In each case cut back
to live wood.
•
Whips or feathered trees: Do not prune.
•
Operatives: Member of the Arboricultural Association.
575 PRUNING
ORNAMENTAL
SHRUBS
•
General: Prune to encourage healthy and bushy growth and desirable ornamental
features, e.g. flowers, fruit, autumn colour, stem colour.
•
Suckers: Remove by cutting back level with the source stem or root.
580
PRUNING FLOWERING SPECIES OF SHRUBS AND ROSES
•
Time of year:
-
Winter flowering shrubs: Spring.
-
Shrubs flowering between March and July: Immediately after the flowering period.
-
Shrubs flowering between July and October: Back to old wood in winter.
Rose bushes: Early spring to encourage basal growths and a balanced, compact habit.
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600
TRIMMING RAPIDLY ESTABLISHING HEDGES
•
General: Allow to reach planned height as rapidly as possible.
-
Form: Trim back lateral branches moderately.
620A REMOVAL OF DEAD PLANT MATERIAL
•
Operations: At the end of the growing season, check all shrubs and remove all dead
foliage, dead wood, and broken or damaged branches and stems. To be disposed of off
site.
625 CLIMBING
PLANTS
•
Pruning: Remove excess growth, to ensure that signs, light fittings, doors and windows are
kept clear at all times.
•
Insecure growth: Attach to supporting wires or structures using 1 mm diameter black
plastics coated steel wire.
•
Supporting structures: Check and repair as necessary.
630
DEAD AND DISEASED PLANTS
•
Removal: As soon as possible.
•
Replacement: Within two weeks.
635
REINSTATEMENT OF SHRUB/ HERBACEOUS AREAS
•
Dead and damaged plants: Remove.
•
Mulch/ matting materials:
-
Carefully move to one side and dig over the soil, leaving it fit for replanting.
•
- Do not disturb roots of adjacent plants.
•
Replacement plants:
-
Use pits and plants: To original specification or to match the size of adjacent or nearby
plants of the same species, whichever is the greater.
-
Additional requirements: None.
•
Dressing: Slow release fertilizer:
-
Type:
Organic.
-
Application rate: As manufacturer's recommendations.
645
WEED CONTROL GENERALLY
•
Weed tolerance: Weed to clear ground every two weeks.
•
Adjacent plants, trees and grass: Do not damage.
650 HAND
WEEDING
•
General: Remove weeds entirely, including roots.
•
Disturbance: Remove the minimum quantity of soil, and disturb plants, bulbs and mulched
surfaces as little as possible.
•
Completion: Rake area to a neat, clean condition.
•
Mulch: Reinstate to original depth.
655
WEED CUTTING BY HAND OR MACHINE
•
Undesirable grass, brambles and herbaceous growth: Cut down cleanly to a maximum
height of 25 mm.
•
Herbicides: Remove arisings before application.
657
HERBICIDE TO KILL REGROWTH
•
Type: Suitable foliar acting herbicide to kill regrowth.
•
Timing: Allow recommended period for herbicide to take effect before clearing dead
weeds.
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665
WEED CONTROL WITH WINTER HERBICIDE
•
Type: Suitable residual soil acting herbicide.
•
Time of year: Unless otherwise agreed, complete before end of March.
•
Timing: Allow recommended period for herbicide to take effect before clearing dead
weeds.
670
WEED CONTROL WITH SUMMER HERBICIDE
•
Type: Suitable foliar acting herbicide.
•
Timing: Allow recommended period for herbicide to take effect before clearing dead
weeds.
675 DIGGING
OVER
•
General: Dig over beds. Do not damage existing plants, bulbs and roots.
Depth of dig (minimum): 150 mm.
680 SOIL
AERATION
•
Compacted soil surfaces:
-
Prick up: To aerate the soil of root areas and break surface crust.
-
Size of lumps: Reduce to crumb and level off.
-
Damage: Do not damage plants and their roots.
685
SOIL LEVEL ADJUSTMENT
•
Level of soil/mulch at edges of beds: Reduce to 50 mm below adjacent grass or hard
surface.
-
Arisings (if any): Spread evenly over the bed.
690
MAINTENANCE OF LOOSE MULCH
•
Thickness (minimum): 50 mm.
-
Top up: as required.
•
Mulch spill on adjacent areas: Remove weeds and rubbish and return to planted area.
•
Weeding: Remove weeds growing on or in mulch by hand weeding.
695
FERTILIZING ESTABLISHED TREES AND SHRUBS
•
Time of year: During April or May.
•
Type of fertilizer: Slow release.
•
Application: Spread evenly.
-
Rate: As manufacturer's recommendations.
705
WINTER LEAF REMOVAL
•
Operations: Take down temporary leaf fences. Collect accumulations of drifted leaves from
the vicinity and from planting beds.
•
Arisings: Remove to recycling facility.
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TREE
WORK
810
TREE WORK GENERALLY
•
Identification: Before starting work agree which trees, shrubs and hedges are to be
removed or pruned.
•
Protection: Avoid damage to neighbouring trees, plants and property.
•
Standards: To BS 3998 and Health & Safety Executive (HSE) 'Forestry and arboriculture
safety
leaflets'.
•
Removing branches: Cut as Arboricultural Association Leaflet 'Mature tree management'.
Cut vertical branches similarly, with no more slope on the cut surface than is necessary to
shed
rainwater.
•
Appearance: Leave trees with a well balanced natural appearance.
•
Chain saw work: Operatives must hold a Certificate of Competence.
•
Tree work: To be carried out by an approved member of the Arboricultural Association.
815 ADDITIONAL
WORK
•
Defective, diseased, unsafe or weak parts of trees additional to those scheduled for
attention: Give notice if detected.
820 PREVENTION
OF WOUND BLEEDING
•
Standard: To BS 3998, clause 8.
825 PREVENTION
OF
DISEASE TRANSMISSION
•
Standard: To BS 3998, clause 9 and Appendix B.
835
CUTTING AND PRUNING GENERALLY
•
Tools: Appropriate, well maintained and sharp.
•
Final pruning cuts:
-
Chainsaws: Do not use on branches of less than 50 mm diameter.
-
Hand saws: Form a smooth cut surface.
-
Anvil type secateurs: Do not use.
•
Removing branches: Do not damage or tear the stem.
•
Wounds: Keep as small as possible, cut cleanly back to sound wood leaving a smooth
surface, and angled so that water will not collect on the cut area.
•
Cutting: Cut at a fork or at the main stem to avoid stumps wherever possible.
Large branches: Remove only if unavoidable.
-
Remove in small sections and lower to ground with ropes and slings.
•
Dead branches and stubs: When removing, do not cut into live wood.
•
Unsafe branches: Remove epicormic shoots and potentially weak forks that could fail in
adverse weather conditions.
•
Disease or fungus: Give notice if detected. Do not apply fungicide or sealant unless
instructed.
845 CROWN
LIFTING
•
Clearances: Remove branch systems to give clearance.
-
Height: 2.5 m above footpaths.
•
Removing branches: Remove whole branches back to the stem, or cut lower portions of
branches back to lateral or sublateral buds or branches. Do not leave stumps.
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86
850 CROWN
THINNING
•
Removing branches: Remove inward growing, crossing, rubbing, dead and damaged
branches.
•
Thinning: Selectively remove secondary and small live branch growth evenly throughout
the
crown.
-
Quantity: 15 %.
•
Cutting: Make no cuts of more than 50 mm diameter.
-
Branches: Cut back to lateral or sublateral buds or branches without leaving stumps.
•
Appearance: Leave a uniform and well balanced structure of branches and foliage.
855
CUTTING TREE ROOTS
•
Excavating: Use hand tools only.
•
Protected area: Do not cut roots within an area which is the larger of:
-
The branch spread of the tree.
-
An area with a radius of half the tree's height, measured from the trunk.
•
Outside protected area: Give notice of roots exceeding 50 mm in diameter. Do not cut
without
approval.
•
Cutting:
-
Cutting: Make clean smooth cuts with a hand saw.
-
Wounds: Minimize. Avoid ragged edges.
-
Finishing: Pare cut surfaces smooth with a sharp knife.
•
Backfilling:
-
Protection: Cover cut roots with clean sharp sand.
-
Material: Backfill with original topsoil.
860
REMOVING TREES, SHRUBS AND HEDGES
•
Standards: To BS 3998, Appendix A and Health & Safety Executive (HSE)/ Arboricultural
and Forestry Advisory Group Safety Leaflets.
•
Existing services: Check for below and above ground services. Give notice if they may be
affected.
•
Shrubs and smaller trees: Cut down and grub up roots.
•
Tree stumps:
-
Removal: Remove mechanically to a minimum depth of 300 mm below ground level.
-
Removal by winching: Give notice. Do not use other trees as supports or anchors.
•
Protection: Avoid damage to neighbouring trees, plants and property.
•
Work near retained trees: Where tree canopies overlap and in confined spaces generally,
take down trees carefully in small sections to avoid damage to adjacent trees that are to be
retained.
•
Filling holes:
-
Material: Use as-dug material and/ or imported soil as required.
-
Finishing: Consolidate and grade to marry in with surrounding ground level.
865 BARK
DAMAGE
•
Wounds:
-
Do not attempt to stop sap bleeding.
-
Bark: Remove ragged edges using a sharp knife.
-
Wood: Remove splintered wood from deep wounds.
-
Size: Keep wounds as small as possible.
•
Liquid or flux oozing from apparently healthy bark: Give notice.
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HARD LANDSCAPE AREAS/FENCING
900 SNOW
CLEARANCE
•
Clearance: On reaching a depth of 5 mm.
•
Deicing: To footpaths.
-
Material: Rock salt to BS 3247.
-
Timing: On snow reaching a depth of 5 mm.
-
Application rate: Spread evenly at a rate of As manufacturer's recommendations.
910
HARD SURFACES AND GRAVEL AREAS
•
Herbicide: Apply a suitable foliar acting or residual herbicide. Allow recommended period
for herbicide to take effect before clearing arisings.
•
Hard surfaces: Remove litter, leaves and other debris.
•
Surface gutters and channels: Remove mud, silt and debris.
•
Drainage gullies: Empty traps and flush clean.
•
Gravel areas: Rake over. Remove weeds, litter, leaves and debris, and level off.
•
Repairs to flexible bituminous pavings: In accordance with the original paving specification
or BS 7370-2, clause 4.12.
•
Stain removal: In accordance with BS 7370-2, table 4.
920 FENCING
•
Fences: Inspect and repair to maintain protection against intruders.
930 GRAFFITI
REMOVAL
•
Method: Pressure wash.
•
Subsequent treatment: Not required.
-
Finish:
n/a.
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Q40 Fencing
To be read with Preliminaries/ General conditions.
FENCING
SYSTEMS
310A RECYCLING STATION ENCLOSURE
•
Refer to drawing 1485-G710-DT-00-312
•
Manufacturer: Submit proposals.
-
Product reference: Submit proposals.
•
Standard: To BS 1722-5, type BW 150.
•
Height: As drawing 1485-G710-DT-00-312.
•
Wood: Softwood.
-
Treatment: Alkaline Copper Quaternary (ACQ).
-
Finish: Exterior wood stain, as section M60.
•
Boards/ rails: As drawing 1485-G710-DT-00-312.
•
Posts: As drawing 1485-G710-DT-00-312.
•
Centres of posts (maximum): As drawing 1485-G710-DT-00-312.
•
Method of setting posts: As drawing 1485-G710-DT-00-312.
•
Accessories: As drawing 1485-G710-DT-00-312.
•
Conformity: Submit manufacturer's and installer's certificates, to BS 1722-5.
340
STEEL VERTICAL BAR FENCING
•
Manufacturer: Submit proposals.
-
Product reference: Submit proposals.
•
Standard: To BS 1722-9.
•
Height: to match existing.
•
Verticals: to match existing.
•
Centres of verticals: to match existing.
•
Posts: to match existing.
-
Finish: Primed ready for site painting.
Colour: RAL 9005 jet black.
•
Centres of posts (maximum): 2.8 m.
•
Method of setting posts/ stays/ legs: As drawing DT-00-311.
•
Accessories: None.
•
Conformity: Submit manufacturer's and installer's certificates, to BS 1722-9.
340A EXISTING STEEL VERTICAL BAR FENCING
•
Manufacturer: n/a.
-
Product reference: n/a.
•
Standard: To BS 1722-9.
•
Height: tbc.
•
Verticals: tbc.
•
Centres of verticals: tbc.
•
Posts: tbc.
-
Finish: Primed ready for site painting.
Colour: RAL 9005 jet black.
•
Centres of posts (maximum): 2.8 m.
•
Method of setting posts/ stays/ legs: As drawing DT-00-311.
•
Accessories: None.
•
Conformity: Submit manufacturer's and installer's certificates, to BS 1722-9.
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89
GATES, POSTS AND STILES
560A STEEL BUTTERFLY GATES POSTS
•
Refer to drawing 1485-G710-DT-00-311
•
Manufacturer: Submit proposals.
•
Standard:
-
Domestic gates: To BS 4092-1.
-
Steel palisade gates: To BS 1722-12.
•
Manufacturer: Submit proposals.
-
Product reference: Submit proposals.
•
Materials and workmanship: As section Z11.
•
Finish: Primed ready for site painting.
-
Colour: RAL 9005 jet black.
•
Jointing: Welded.
•
Fittings: to match existing.
•
Finish: Primed for painting.
•
Method of fixing: As drawing 1485-G710-DT-00-311.
•
Accessories: As drawing 1485-G710-DT-00-311.
EXECUTION
710 INSTALLATION
GENERALLY
•
Set out and erect:
-
Alignment: Straight lines or smoothly flowing curves.
-
Tops of posts: Following profile of the ground.
-
Setting posts: Rigid, plumb and to specified depth, or greater where necessary to ensure
adequate
support.
-
Fixings: All components securely fixed.
715 COMPETENCE
•
Operatives: Contractors must employ competent operatives.
•
Qualifications: Submit certification of training.
-
NHSS Sector Scheme 2A sub categories: (b).
-
NHSS Sector Scheme 2C sub categories: (b).
720
SETTING POSTS IN CONCRETE
•
Standard: To BS 8500-2.
•
Mix: Designated concrete not less than GEN1 or Standard prescribed concrete not less
than
ST2.
•
Alternative mix for small quantities: 50 kg Portland cement to 150 kg fine aggregate to 250
kg 20 mm nominal maximum size coarse aggregate, medium workability.
•
Admixtures: Do not use.
•
Holes: Excavate neatly and with vertical sides.
•
Filling: Position post/ strut and fill hole with concrete to not less than the specified depth,
well rammed as filling proceeds and consolidated.
•
Backfilling of holes not completely filled with concrete: Excavated material, well rammed
and
consolidated.
740
SETTING POSTS IN EARTH
•
Holes: Excavated neatly, with vertical sides and as small as practicable to allow refilling.
•
Filling: Position posts/ struts and replace excavated material, well rammed as filling
proceeds.
750 DRIVEN
POSTS
•
Damage to heads: Minimize.
Repair: Neatly finish post tops after installation.
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766 ARRIS
RAILS
•
Fixing:
-
Rail end section: Shaped to adequately fill the post mortice or recess.
-
Recessed posts: Rails bolted to each post.
-
Top rails: Fixed at both ends using One 8 mm diameter bolt .
•
Rails with split ends: Replace.
770
SITE CUTTING OF WOOD
•
General: Kept to a minimum.
•
Below or near ground level: Cutting prohibited.
•
Treatment of surfaces exposed by minor cutting and drilling: Two flood coats of solution
recommended for the purpose by main treatment solution manufacturer.
780
MAKING GOOD GALVANIZED SURFACES
•
Treatment of minor damage (including on fasteners and fittings): Low melting point zinc
alloy repair rods or powders made for this purpose, or at least two coats of zinc-rich paint
to BS 4652.
•
Thickness: Apply sufficient material to provide a zinc coating at least equal in thickness to
the original layer.
790 SITE
PAINTING
•
Timing: Prepare surfaces and apply finishes as soon as possible after fixing.
COMPLETION
910 CLEANING
•
General: Leave the works in a clean, tidy condition.
•
Surfaces: Clean immediately before handover.
920 FIXINGS
•
All components: Tighten.
-
Timing: Before handover.
930 GATES
•
Hinges, latches and closers: Adjust to provide smooth operation. Lubricate where
necessary.
-
Timing: Before handover.
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91
Q50 Site/street furniture/equipment
To be read with Preliminaries/ General conditions.
196A TELESCOPIC
BOLLARDSF9
•
Refer to drawing 1485-G710-DT-00-303
•
Manufacturer: Furnitubes or equal and approved (www.furnitubes.com.
-
Product reference: TPR600 large round.
•
Material: Steel.
-
Finish as delivered: powder coated .
-
Colour: RAL 9005 Jet Black.
•
Height above ground: 850mm.
•
Special features: none.
•
Method of fixing: Concrete base with manufacturer's standard lockable socket.
SITE AND STREET FURNITURE
220 BENCHESF1
•
Manufacturer: Lost Art or equal and approved (www.lostart.co.uk/cartmel.htm).
-
Product reference: Cartmel bench.
•
Material: Cast iron and Wood.
-
Finish: As manufactured.
-
Colour:
None.
•
Size: As manufactured.
•
Accessories/ Special requirements: None.
•
Method of fixing: As drawing DT-00-304.
220A BENCHESF2
•
Manufacturer: Broxap or equal and approved (www.broxap.com).
-
Product
reference:
Willenhall BX14 4015-BP.
•
Material: Steel and Wood.
-
Finish: As manufactured.
-
Colour:
None.
•
Size: As manufactured.
•
Accessories/ Special requirements: None.
•
Method of fixing: As drawing DT-00-304.
230A PICNIC TABLES F8
•
Manufacturer: Broxap or equal and approved (www.broxap.com).
-
Product reference: Springfield
BX17 4015 or similar approved.
•
Material: Wood.
-
Finish: As manufactured.
-
Colour:
None.
•
Size: 1.8 m long.
•
Accessories/ Special requirements: None.
•
Method of fixing: Submerged fixing, anchored into concrete base.
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92
240 LITTER
BINSF3
•
Manufacturer: Broxap or equal and approved (www.broxap.com).
-
Product reference: Derby Double
BX50
2550-DD-SS.
•
Material: Stainless steel.
-
Finish: As manufactured.
-
Colour: RAL 9005 Jet Black.
•
Accessories/ Special requirements: None.
•
Method of fixing: As drawing DT-00-303.
350A BAT
BOXB1
•
Manufacturer: Schwegler (http://www.schwegler-natur.de/) or equal amd approved.
-
Product reference: Bat Box 2F, Schwegler Woodcrete Boxes.
•
Material: SCHWEGLER wood-concrete.
-
Finish: As manufactured.
-
Colour: Black, grey front panel.
•
Accessories/ Special requirements: Concealed, vandal proof fixings.
•
Method of fixing: Tree-mounted.
350B BIRD
BOXB2
•
Manufacturer: Schwegler (http://www.schwegler-natur.de/) or equal amd approved.
-
Product reference: Nest Box 1B, Schwegler Woodcrete Boxes.
•
Material: SCHWEGLER wood-concrete.
-
Finish: As manufactured.
-
Colour: Classic Brown.
•
Entrance hole: 32 mm
•
Accessories/ Special requirements: Concealed, vandal proof fixings.
•
Method of fixing: Tree-mounted.
INSTALLATION
510 CONCRETE
FOUNDATIONS
GENERALLY
•
Standard: To BS 8500-2.
•
Concrete: to engineer's specification.
•
Admixtures: Do not use.
•
Foundation holes: Neat vertical sides.
•
Depth of foundations, bedding, haunching: Appropriate to provide adequate support and to
receive overlying soft landscape or paving finishes.
515
SETTING COMPONENTS IN CONCRETE
•
Holes: 250 x 250 x minimum 300 mm deep.
•
Components: Accurately positioned and securely supported.
•
Concrete fill: Fully compacted as filling proceeds.
•
Concrete foundations exposed to view: Compacted until air bubbles cease to appear on
the upper surface, then weathered to shed water and trowelled smooth.
•
Temporary component support: Maintain undisturbed for minimum 48 hours.
530
PRESERVATIVE TREATED TIMBER
•
Surfaces exposed by minor cutting and drilling: Treated by immersion or with two flood
coats of a solution recommended for the purpose by main treatment solution manufacturer.
•
Heavily worked sections: Re-treat.
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93
550
DAMAGE TO GALVANIZED SURFACES
•
Minor damage in areas up to 40 mm² (including on fixings and fittings): Make good.
-
Material: Low melting point zinc alloy repair rods or powders made for this purpose or at
least two coats of zinc-rich paint to BS 4652.
-
Thickness: Sufficient to provide a zinc coating at least equal to the original layer.
560 SITE
PAINTING
•
Timing: Prepare surfaces and apply finishes as soon as possible after fixing.
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