ABSTRACT
Concrete blockwork, aerated 78 .. .. .. .. .. .. .. .. lightweight aggregate 129 Concrete flagstones (50mm) 115
Glass blocks (100mm thick) 150 ✕ 150 98 .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..200 ✕ 200 83
ROOFING † Slates † see page 474 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.
