ABSTRACT
Turning into groove 20mm deep – – – – m 0.67 Internal angle fillets; subsequently covered – – – – m 3.93
Material £ hours £ £ rate £
J21 MASTIC ASPHALT ROOFING/INSULATION/ FINISHES
Mastic asphalt to BS 6925 Type R 988 20mm thick two coat coverings; felt isolating membrane; to concrete (or timber) base; flat or to falls or slopes not exceeding 10° from horizontal
over 300mm wide – – – – m2 16.77 225mm-300mm wide – – – – m2 25.89 150mm-225mm wide – – – – m2 30.25 not exceeding 150mm wide – – – – m2 38.93
Add to the above for covering with: 10mm thick limestone chippings in hot bitumen – – – – m2 2.74 coverings with solar reflective paint – – – – m2 3.08 300mm×300mm×8mm g.r.p. tiles in hot bitumen – – – – m2 46.37
Cutting to line; jointing to old asphalt – – – – m 5.31 13mm thick two coat skirtings to brickwork base
not exceeding 150mm girth – – – – m 11.43 150mm-225mm girth – – – – m 13.11 225mm-300mm girth – – – – m 16.06
13mm thick three coat skirtings; expanded metal lathing reinforcement nailed to timber base
not exceeding 150mm girth – – – – m 19.21 150mm-225mm girth – – – – m 22.89 225mm-300mm girth – – – – m 26.77
13mm thick two coat fascias to concrete base not exceeding 150mm girth – – – – m 11.43 150mm-225mm girth – – – – m 13.11
20mm thick two coat linings to channels to concrete base
not exceeding 150mm girth – – – – m 25.12 150mm-225mm girth – – – – m 28.57 225mm-300mm girth – – – – m 29.40
20mm thick two coat lining to cesspools 250mm×150mm×150mm deep – – – – nr 24.62
Collars around pipes, standards and like members – – – – nr 17.61
Accessories Eaves trim; extruded aluminium alloy; working asphalt into trim
Alutrim; type A roof edging or other equal and approved – – – – m 10.50
extra; angle – – – – nr 5.87 Roof screed ventilator – aluminium alloy
Extr-aqua-vent or other equal and approved; set on screed over and including dished sinking; working collar around ventilator – – – – nr 20.35
Material £ hours £ £ rate £
J30 LIQUID APPLIED TANKING/DAMP-PROOF MEMBRANES
Tanking and damp-proofing Synthaprufe or other equal and approved; blinding with sand; horizontal on slabs
two coats – 0.19 2.50 2.79 m2 5.29 three coats – 0.26 3.42 4.12 m2 7.54
One coat Vandex Super 0.75 kg/m2 slurry or other equal and approved; one consolidating coat of Vandex BB75 1kg/m2 slurry or other equal and approved; horizontal on beds
over 225mm wide – 0.32 4.21 7.48 m2 11.69 Intergritank; Methacrylate resin based structural waterproffing membrane; in two separate colour coded coats; minimumm 2mm overalll dry film finish; on a primed substrate over 250mm wide
100m2 – 499m2 – – – – m2 43.88 500m2 – 1999m2 – – – – m2 36.08 over 2000m2 – – – – m2 29.25
J40 FLEXIBLE SHEET TANKING/DAMP-PROOF MEMBRANES
Tanking and damp-proofing Visqueen self-adhesive damp-proof membrane
over 300mm wide; horizontal – – – – m2 5.99 not exceeding 300mm wide; horizontal – – – – m 2.30
Tanking primer for self-adhesive dpm over 300mm wide; horizontal – – – – m2 4.14 not exceeding 300mm wide; horizontal – – – – m 1.89
‘Bituthene’ sheeting or other equal and approved; lapped joints; horizontal on slabs
3000grade – 0.09 1.19 4.33 m2 5.52 8000grade – 0.10 1.31 6.03 m2 7.34 5000HD heavy duty grade – 0.12 1.58 5.73 m2 7.31
‘Bituthene’ sheeting or other equal and approved; lapped joints; dressed up vertical face of concrete
8000grade – 0.17 2.23 6.03 m2 8.26 RIW ‘Structureseal’ tanking and damp-proof membrane; or other equal and approved
over 300mm wide; horizontal – – – – m2 6.00 ‘Structureseal’ Fillet
40mm × 40mm – – – – m 4.40 Ruberoid Plasfrufe 2000SA self-adhesive dampproof membrane
over 300mm wide; horizontal – – – – m2 11.40 not exceeding 300mm wide; horizontal – – – – m 4.37
Extra for 50mm thick sand blinding – – – – m2 2.00
Material £ hours £ £ rate £
Servi-pak protection board or other equal and approved; butt jointed; taped joints; to horizontal surfaces;
3mm thick – 0.14 1.85 4.65 m2 6.50 6mm thick – 0.14 1.85 6.96 m2 8.81 12mm thick – 0.19 2.50 12.29 m2 14.79
Servi-pak protection board or other equal and approved; butt jointed; taped joints; to vertical surfaces
3mm thick – 0.19 2.50 4.65 m2 7.15 6mm thick – 0.19 2.50 6.96 m2 9.46 12mm thick – 0.23 3.03 12.29 m2 15.32
Bituthene reinforcing strip or other equal and approved; 70mm wide
Bitutape 4000 – 0.09 1.19 0.46 m 1.65 Expandite Famflex hot bitumen bonded waterproof tanking or other equal and approved; 150mm laps
horizontal; over 300mm wide – 0.37 4.87 9.73 m2 14.60 vertical; over 300mm wide – 0.60 7.90 9.73 m2 17.63
J41 BUILT UP FELT ROOF COVERINGS
NOTE: The following items of felt roofing, unless otherwise described, include for conventional lapping, laying and bonding between layers and to base; and laying flat or to falls, crossfalls or to slopes not exceeding 10° – but exclude any insulation etc.
