Sand screed slate.
Skyscraper roof weights.
Medium weight lightweight clay plain clay pantile concrete slate.
Here is a list of sample roofing material weights per 100 square feet.
The weight of roofing constructions above the truss rafter may be estimated with the calculator below.
3 layers and vapour barrier sheet aerated concrete dense aggregate lightweight on shelves bulk cast blue engineering.
0 5 0 4 0 3 4 0 5 7 0 77 0 42 0 51 0 3 s.
None asphalt roll roofing 1 1 lb m ft 2.
Bituminous felt roofing bitumen blockboard blockwork books brass brickwork bronze.
In fact with many heavy roofs fire fighters will not go inside the home to fight the fire if it has avery heavy roof on top.
Roofs are under a lot of pressure.
Aluminum shingles 45.
Load limits on the roof of a building.
In order to stay intact and in place a roof must be able to resist loads both permanent and temporary that are pushing.
The following table provides typical weights dead load self weight for various roofing materials where possible the values were taken directly from manufacturer technical data sheets and are the actual weights of specific representative products.
The buildings must support their weight resist wind and earthquakes and protect occupants from fire.
Yet they must also be conveniently accessible even on the upper floors and provide utilities and a comfortable climate for the occupants.