ABSTRACT
Suspended slab; average depth; no coverings or finishes ; per m² of upper floor area m² £ 106.87 to £ 140.54
Precast concrete floors and frame
Suspended slab; average depth; no coverings or finishes ; per m² of upper floor area m² £ 106.87 to £ 202.03
Precast concrete floors; steel frame
Suspended slabs; average depth; protected steel frame; no coverings or finishes; per m² of upper floor area
up to six storeys m² £ 193.25 to £ 247.42 Extra per m² of upper floor area for
wrought formwork m² £ 4.54 to £ 5.42 sound reducing quilt in screed m² £ 4.83 to £ 8.64 insulation to avoid cold bridging m² £ 8.64 to £ 11.86
Softwood flat roofs
Roof joists; average depth; 25 mm softwood boarding; PVC rainwater goods; plasterboard; skim and emulsion ; per m² of roof plan area
three layer felt and chippings m² £ 102.48 to £ 128.83 two coat asphalt and chippings m² £ 98.09 to £ 142.01
Softwood trussed pitched roofs
Structure only comprising 100 x 38 mm Fink roof trusses @ 600 mm centres (measured on plan) ; per m² of roof plan area
30 degrees pitch m² £ 24.89 to £ 29.28 35 degrees pitch m² £ 26.35 to £ 29.28 40 degrees pitch m² £ 27.82 to £ 33.67
SUPERSTRUCTURE - continued
ROOF - continued
Softwood trussed pitched roofs - continued
Fink roof trusses; narrow span; 100 mm insulation; PVC rainwater goods; plasterboard; skim and emulsion per m² of roof plan area
concrete interlocking tile coverings m² £ 105.41 to £ 142.01 clay pantile coverings m² £ 114.19 to £ 150.79 composition slate coverings m² £ 120.05 to £ 156.65 plain clay tile coverings m² £ 142.01 to £ 180.07 natural slate coverings m² £ 150.79 to £ 188.86 reconstructed stone coverings m² £ 122.98 to £ 196.18
Monopitch roof trusses; 100 mm insulation; PVC rainwater goods; plasterboard; skim and emulsion ; per m² of roof plan area
concrete interlocking tile coverings m² £ 127.37 to £ 150.79 clay pantile coverings m² £ 124.44 to £ 156.65 composition slate coverings m² £ 131.76 to £ 166.90 plain clay tile coverings m² £ 150.79 to £ 191.78 natural slate coverings m² £ 156.65 to £ 196.18 reconstructed stone coverings m² £ 128.83 to £ 204.96
Steel trussed pitched roofs
Steel roof trusses and beams; thermal and accoustic insulation; per m² of roof plan area
aluminium profiled composite cladding m² £ 272.30 to £ 323.54 Steel roof and glulam beams; thermal and accoustic insulation; per m² of roof plan area
aluminium profiled composite cladding m² £ 272.30 to £ 360.14
Concrete flat roofs
Structure only comprising reinforced concrete suspended slab; no coverings or finishes ; per m² of roof plan area
3.65 m span; 8.00 KN/m² loading m² £ 67.34 to £ 70.27 4.25 m span; 8.00 KN/m² loading m² £ 80.52 to £ 84.91
Precast concrete suspended slab; average depth; 100 mm insulation; PVC rainwater goods; per m² of roof plan area
two coat asphalt coverings and chippings m² £ 122.98 to £ 171.29 Reinforced concrete or waffle suspended slabs; average depth; 100 mm insulation; PVC rainwater goods; per m² of roof plan area
two coat asphalt coverings and chippings m² £ 133.22 to £ 175.68 Reinforced concrete suspended slabs; on `Holorib' permanent steel shuttering; average depth; 100 mm insulation; PVC rainwater goods; per m² of roof plan area
two coat asphalt coverings and chippings m² £ 124.44 to £ 149.33
Flat roof decking and finishes
Woodwool roof decking; per m² of roof plan area 50 mm thick; two coat asphalt coverings to BS 6925 and chippings m² £ 55.63 to £ 70.27
Galvanised steel roof decking; 100 mm insulation; three layer felt roofing and chippings ; per m² of roof plan area
0.7 mm thick; 3.74 m span m² £ 61.49 to £ 76.13 0.7 mm thick; 5.13 m span m² £ 62.95 to £ 79.06
Aluminium roof decking; 100 mm insulation; three layer felt roofing and chippings ; per m² of roof plan area
0.9 mm thick; 2.34 m span m² £ 71.74 to £ 87.84 Metal decking; 100 mm insulation; on wood/steel open lattice beams; per m² of roof plan area
three layer felt roofing and chippings m² £ 106.87 to £ 131.76 two layer high performance felt roofing and chippings m² £ 111.26 to £ 133.22
Roof claddings
Non-asbestos profiled cladding; per m² of roof plan area 'profile 3'; natural m² £ 18.45 to £ 22.84 'profile 6'; natural m² £ 20.50 to £ 25.03 'profile 6'; natural; insulated; inner lining panel m² £ 22.84 to £ 25.03 Extra for colours m² £ 2.05 to £ 2.64
Non-asbestos profiled cladding on steel purlins; per m² of roof plan area
insulated m² £ 36.16 to £ 45.68 insulated; with 10% translucent sheets m² £ 40.70 to £ 47.87 insulated; plasterboard inner lining on metal tees m² £ 59.00 to £ 69.10
PVF2 coated galvanised steel profiled cladding on steel purlins; per m² of roof plan area
cladding only; 0.72mm thick m² £ 25.03 to £ 36.16 insulated m² £ 44.07 to £ 65.73 insulated; plasterboard inner lining on metal tees m² £ 65.73 to £ 93.55 insulated; plasterboard inner lining on metal tees; with 1% fire vents m² £ 76.86 to £ 115.80 insulated; plasterboard inner lining on metal tees; with 2.5% fire vents m² £ 95.75 to £ 133.66 insulated; coloured inner lining panel m² £ 67.93 to £ 95.75 insulated; coloured inner lining panel; with 1% fire vents m² £ 76.86 to £ 106.87 insulated; coloured inner lining panel; with 2.5% fire vents m² £ 95.75 to £ 124.73 insulated; sandwich panel m² £ 142.59 to £ 249.47
SUPERSTRUCTURE - continued
ROOF - continued
Rooflights/patent glazing and glazed roofs
Rooflights standard pvc m² £ 159.58 to £ 285.48 feature/ventilating m² £ 285.48 to £ 524.11
Patent glazing; including flashings standard aluminium georgian wired; single glazed m² £ 204.96 to £ 285.48 standard aluminium georgian wired; double glazed m² £ 238.63 to £ 329.40
Comparative over/underlays
Roofing felt; unreinforced sloping (measured on face) m² £ 1.83 to £ 2.39
Roofing felt; reinforced sloping (measured on face) m² £ 2.27 to £ 2.61 sloping (measured on plan); 20 degrees pitch m² £ 2.61 to £ 3.29 sloping (measured on plan); 30 degrees pitch m² £ 2.85 to £ 3.67 sloping (measured on plan); 40 degrees pitch m² £ 3.67 to £ 4.11
Building paper; per m² of roof plan area m² £ 1.58 to £ 3.29 Vapour barrier; per m² of roof plan area m² £ 2.39 to £ 7.13 Insulation quilt; laid over ceiling joists ; per m² of roof plan area
100 mm thick m² £ 5.34 to £ 5.68 150 mm thick m² £ 7.35 to £ 8.24 200 mm thick m² £ 9.79 to £ 10.69
Wood fibre insulation boards; impregnated; density 220 - 350 kg/m³; per m² of roof plan area
12.7 mm thick m² £ 6.57 to £ 9.14 Limestone ballast; per m² of roof plan area m² £ 7.17 to £ 12.30 Polyurethane insulation boards; density 32 kg/m³ ; per m² of roof plan area
30 mm thick m² £ 10.25 to £ 12.30 50 mm thick m² £ 12.30 to £ 12.74
Glass fibre insulation boards; density 120 - 130 kg/m²; per m² of roof plan area
60 mm thick m² £ 18.89 to £ 22.84 Extruded polystyrene foam boards; per m² of roof plan area
50 mm thick m² £ 17.86 to £ 20.50 50 mm thick; with cement topping m² £ 28.99 to £ 32.79 75 mm thick m² £ 23.42 to £ 26.21
Screeds to receive roof coverings; per m² of roof plan area 50 mm cement and sand screed m² £ 11.86 to £ 13.32 60 mm (av.) 'Isocrete K' screed; density 500 kg/m³ m² £ 12.74 to £ 13.76 75 mm lightweight bituminous screed and vapour barrier m² £ 19.91 to £ 22.84 100 mm lightweight bituminous screed and vapour barrier m² £ 24.45 to £ 27.23
50 mm Woodwool slabs; unreinforced sloping (measured on face) m² £ 10.25 to £ 13.91 sloping (measured on plan); 20 degrees pitch m² £ 11.27 to £ 15.37 sloping (measured on plan); 30 degrees pitch m² £ 12.44 to £ 16.84 sloping (measured on plan); 40 degrees pitch m² £ 15.37 to £ 20.86
50 mm Woodwool slabs; unreinforced; on and including steel purlins at 600 mm centres m² £ 12.74 to £ 16.40 25 mm `Tanalised' softwood boarding
sloping (measured on face) m² £ 17.42 to £ 19.91 sloping (measured on plan); 20 degrees pitch m² £ 18.89 to £ 21.67 sloping (measured on plan); 30 degrees pitch m² £ 22.84 to £ 26.21 sloping (measured on plan); 40 degrees pitch m² £ 27.23 to £ 29.57
18 mm External quality plywood boarding sloping (measured on face) m² £ 22.11 to £ 26.79 sloping (measured on plan); 20 degrees pitch m² £ 24.45 to £ 28.40 sloping (measured on plan); 30 degrees pitch m² £ 29.57 to £ 35.14 sloping (measured on plan); 40 degrees pitch m² £ 35.14 to £ 39.53
Comparative tiling and slating finishes/perimeter treatments (including underfelt, battening, eaves courses and ridges)
Concrete troughed interlocking tiles; 413 x 300 mm; 75 mm lap sloping (measured on face) m² £ 21.08 to £ 26.21 sloping (measured on plan); 30 degrees pitch m² £ 27.23 to £ 32.79 sloping (measured on plan); 40 degrees pitch m² £ 32.79 to £ 36.16
Concrete interlocking slates; 430 x 330 mm; 75 mm lap sloping (measured on face) m² £ 22.11 to £ 26.79 sloping (measured on plan); 30 degrees pitch m² £ 24.01 to £ 33.38 sloping (measured on plan); 40 degrees pitch m² £ 32.79 to £ 36.75
Concrete bold roll interlocking tiles; 418 x 332 mm; 75 mm lap sloping (measured on face) m² £ 21.08 to £ 26.21 sloping (measured on plan); 30 degrees pitch m² £ 27.82 to £ 32.79 sloping (measured on plan); 40 degrees pitch m² £ 31.18 to £ 35.58
Natural red pantiles; 337 x 241 mm; 76 mm head and 38 mm side laps
sloping (measured on face) m² £ 35.14 to £ 42.90 sloping (measured on plan); 30 degrees pitch m² £ 45.68 to £ 53.44 sloping (measured on plan); 40 degrees pitch m² £ 51.83 to £ 59.00
Blue composition (non-asbestos) slates; 600 x 300 mm; 75 mm lap sloping (measured on face) m² £ 36.16 to £ 44.51 sloping to mansard (measured on face) m² £ 51.24 to £ 59.00 sloping (measured on plan); 30 degrees pitch m² £ 47.87 to £ 60.17 sloping (measured on plan); 40 degrees pitch m² £ 54.02 to £ 87.99
Concrete plain tiles; 267 x 165 mm; 64 mm lap sloping (measured on face) m² £ 42.16 to £ 50.80 sloping (measured on plan); 30 degrees pitch m² £ 52.26 to £ 63.61 sloping (measured on plan); 40 degrees pitch m² £ 63.10 to £ 78.91
SUPERSTRUCTURE - continued
ROOF - continued
Comparative tiling and slating finishes/perimeter treatments (including underfelt, battening, eaves courses and ridges) - continued
Machine made clay plain tiles; 267 x 165 mm; 64 mm lap sloping (measured on face) m² £ 55.19 to £ 65.15 sloping (measured on plan); 30 degrees pitch m² £ 68.52 to £ 81.84 sloping (measured on plan); 40 degrees pitch m² £ 83.01 to £ 97.94
Welsh natural slates; 510 x 255 mm; 76 mm lap sloping (measured on face) m² £ 61.20 to £ 79.64 sloping (measured on plan); 30 degrees pitch m² £ 79.64 to £ 95.75 sloping (measured on plan); 40 degrees pitch m² £ 93.55 to £ 102.48
Reconstructed stone slates; random lengths; 80 mm lap sloping (measured on face) m² £ 38.36 to £ 72.47 sloping (measured on plan); 30 degrees pitch m² £ 47.87 to £ 93.55 sloping (measured on plan); 40 degrees pitch m² £ 56.80 to £ 106.87
Verges to sloping roofs; 250 x 25 mm painted softwood bargeboard; measured perimeter length
6 mm 'Masterboard' soffit lining 150 mm wide m £ 19.91 to £ 24.01 19 x 150 mm painted softwood soffit m £ 24.01 to £ 26.79
Eaves to sloping roofs; 200 x 25 mm painted softwood fascia; 6 mm 'Masterboard' soffit lining 225 mm wide; measured perimeter length
100 mm PVC gutter m £ 27.23 to £ 36.75 150 mm PVC gutter m £ 34.55 to £ 44.51 100 mm cast iron gutter; decorated m £ 43.48 to £ 51.83 150 mm cast iron gutter; decorated m £ 52.85 to £ 61.20
Eaves to sloping roofs; 200 x 25 mm painted softwood fascia; 19 x 225 mm painted softwood soffit; measured perimeter length
100 mm PVC gutter m £ 32.79 to £ 41.14 150 mm PVC gutter m £ 40.70 to £ 49.04 100 mm cast iron gutter; decorated m £ 49.04 to £ 55.63 150 mm cast iron gutter; decorated m £ 57.39 to £ 66.32
Rainwater pipes; fixed to backgrounds; including offsets and shoe measured length of pipes
68 mm PVC m £ 9.52 to £ 13.62 110 mm PVC m £ 14.20 to £ 31.62 75 mm cast iron; decorated m £ 34.55 to £ 41.14 100 mm cast iron; decorated m £ 40.70 to £ 49.04
Ridges measured length of ridge concrete half round tiles m £ 19.32 to £ 24.01 machine-made clay half round tiles m £ 24.01 to £ 28.40
Hips; including mitring roof tiles measured length of hip concrete half round tiles m £ 25.03 to £ 32.79 machine-made clay half round tiles m £ 35.58 to £ 40.11
Comparative cladding finishes (including underfelt, labours etc.)
0.91 mm Aluminium roofing; commercial grade flat m² £ 55.63 to £ 62.95
0.91 mm Aluminium roofing; commercial grade ; fixed to boarding (included)
sloping (measured on face) m² £ 58.56 to £ 68.81 sloping (measured on plan); 20 degrees pitch m² £ 65.88 to £ 76.13 sloping (measured on plan); 30 degrees pitch m² £ 79.06 to £ 90.77 sloping (measured on plan); 40 degrees pitch m² £ 93.70 to £ 102.48
Comparative waterproof finishes/perimeter treatments
Liquid applied coatings solar reflective paint m² £ 2.05 to £ 3.66 spray applied bitumen m² £ 8.20 to £ 13.32 spray applied co-polymer m² £ 9.66 to £ 14.79 spray applied polyurethane m² £ 15.96 to £ 21.67
20 mm Two coat asphalt roofing; laid flat; on felt underlay to BS 6925 m² £ 16.98 to £ 22.11 to BS 6577 m² £ 24.01 to £ 29.57 Extra for solar reflective paint m² £ 2.78 to £ 3.95 limestone chipping finish m² £ 3.51 to £ 9.08 grp tiles in hot bitumen m² £ 38.36 to £ 47.87
20 mm Two coat reinforced asphaltic compound; laid flat; on felt underlay to BS 6577 m² £ 26.21 to £ 32.79 Built-up bitumen felt roofing; laid flat
three layer glass fibre roofing m² £ 22.84 to £ 28.40 three layer asbestos based roofing m² £ 28.40 to £ 32.79 Extra for granite chipping finish m² £ 3.51 to £ 8.93
SUPERSTRUCTURE - continued
ROOF - continued
Comparative waterproof finishes/perimeter treatments - continued
Built-up self-finished asbestos based bitumen felt roofing; laid sloping
two layer roofing (measured on face) m² £ 30.60 to £ 36.75 two layer roofing (measured on plan); 40 degree pitch m² £ 46.85 to £ 51.24 three layer roofing (measured on face) m² £ 40.70 to £ 49.04 three layer roofing (measured on plan); 20 degree pitch m² £ 61.20 to £ 67.93 three layer roofing (measured on plan); 30 degree pitch m² £ 63.54 to £ 70.13
Elastomeric single ply roofing; laid flat EPDM membrane; laid loose m² £ 26.79 to £ 30.60
Butyl rubber membrane; laid loose m² £ 26.79 to £ 30.60 Extra for ballast m² £ 8.20 to £ 13.32
Thermoplastic single ply roofing; laid flat laid loose m² £ 25.62 to £ 30.60 mechanically fixed m² £ 32.79 to £ 38.36 fully adhered m² £ 36.16 to £ 41.14 CPE membrane; laid loose m² £ 29.57 to £ 36.16 CSPG membrane; fully adhered m² £ 29.57 to £ 36.16 PIB membrane; laid loose m² £ 33.96 to £ 41.14 Extra for ballast m² £ 8.20 to £ 13.32
High performance built-up felt roofing; laid flat three layer 'Ruberglas 120 GP' felt roofing; granite chipping finish m² £ 36.16 to £ 39.53 'Andersons' three layer self-finish polyester based bitumen felt roofing m² £ 36.16 to £ 41.14
High performance built-up felt roofing; laid flat three layer polyester based modified bitumen felt roofing m² £ 37.33 to £ 41.14 three layer 'Ruberfort HP 350' felt roofing; granite chipping finish m² £ 45.68 to £ 51.24 three layer 'Hyload 150E' elastomeric roofing; granite chipping finish m² £ 45.68 to £ 51.24 three layer 'Polybit 350' elastomeric roofing; granite chipping finish m² £ 47.87 to £ 53.44
Torch on roofing; laid flat three layer polyester-based modified bitumen roofing m² £ 32.79 to £ 38.94 two layer polymeric isotropic roofing m² £ 32.79 to £ 38.94 Extra for granite chipping finish m² £ 3.07 to £ 8.20
Edges to flat felt roofs; softwood splayed fillet; 280 x 25 mm painted softwood fascia; no gutter
aluminium edge trim m £ 38.36 to £ 41.14
