Weight Of Lead Roof

The temperature of lead on a roof varies constantly.

Weight of lead roof. Mars metal provides sheet lead conforming to federal qq l 201f and qq l 171e and astm b 29 and b 749. Pure lead products maunufactures quality 2 2 5 3 and 4 pound crimped lead roof flashings. To minimise this all rolled lead is manufactured to meet bs en 12588 with different lead codes thicknesses having different applications and weight. On a low pitch roof where the lead isn t free to move it is more likely to buckle on expansion or stretch as it contracts.

None asphalt roll roofing 1 1 lb m ft 2 5 4 kg m 2 asphalt shingle or asphalt fiberglass composite shingle 2 7 lb m ft 2 13 2 kg m 2. Our sizing guide provides the maximum recommended sizes for a range of common lead sheet applications. Blm s weight chart provides the theory weights of standard rolls of rolled lead sheet. Pipe sizes 2 1 4 to 6 3 4 call us.

Another factor of meeting the standard is that the thickness of roofing lead may only have 5 variance across its entire length. When the lead rests directly onto sawn timber on a steeply pitched roof and non resinous timber has been used underlay may not be necessary.