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PITCHED AND FLAT ROOFING COSTS

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AJ SPECIFICATION

DAVIS LANGDON PROVIDES COSTS FOR PITCHED AND FLAT ROOF TILES, SLATES, BUILT-UP FELT, SINGLE LAYER, MASTIC ASPHALT AND METAL ROOFING. COSTS SHOW RATES FOR MEDIUM-SIZED PROJECTS IN OUTER LONDON IN NOVEMBER 2005.

TILES AND SLATES Plain roofing costs, including battens and underfelt but excluding edge details and flashings.

0.7mm aluminium standing-seam roofing 63 - 73 Extra for stucco embossed finish 4 - 6 0.7mm pre-weathered zinc standing-seam joints 65 - 80 0.6mm mill-finish copper standing-seam joints 65 - 80 0.7mm steel standing-seam roofing 65 - 80 0.7mm Terne-coated stainless-steel standing-seam joints 75 - 95 Milled lead Code 5 2.24mm lead roll joints, coated with patination oil, 80 - 95 TYPICAL SUBSTRATES:

Geotextile fleece underlay 4 - 6 18mm WBP plywood 18 - 22 0.7mm profiled-steel liner sheets 20 - 25 Profiled-steel decking 25 - 35 Work to ridges, eaves and allowances for box gutters, verge flashings etc may add 33-50 per cent to net rates. Curved structures may add 50-75 per cent.

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