ABSTRACT
ROOFING † Slates † see page 443 Thatching (300mm thick) 40„00 Tiles † plain clay 63„50 .. † plain concrete 93„00 .. single lap, concrete 49„00 Tile battens (50 25) and felt underlay 7„70 Bituminous felt underlay 1„00 Bituminous felt, sanded topcoat 2„70
3 layers bituminous felt 4„80 HD/PE breather membrane underlay 0„20
SHEETMATERIALS † Aluminium (0„9mm) 2„50 Copper (0„9mm) 4„88 Cork board (standard) per 25mm thickness 4„33 .. .. .. .. .. .. .. .. (compressed) .. .. .. .. .. .. .. .. 9„65 Hardboard (3„2mm) 3„40
Glass (3mm) 7„30 Lead (1„25mm) 14„17 .. .. (3mm) 34„02 Particle board/chipboard (12mm) 9„26 .. .... .... .. .. .. .. .. .. .. .. .. .. .. .. (22mm) 16„82 Planking, softwoodstrip flooring (ex25mm) 11„20
.. .. .. .. .. .. .. .. .. .. hardwood .. .. .. .. .. .. .. .. .. 16„10 Plasterboard (9„5mm) 8„30 .. .. .. .. .. .. .. (12„5mm) 11„00 .. .. .. .. .. .. .. (19mm) 17„00 Plywood per 25mm 15„00 PVC floor tiling (2„5mm) 3„90 Strawboard (25mm) 9„80
Densities -
Ref. BS 648: Schedule of Weights of Building Materials.
