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Roofing Materials - Weights

Weight calculator for roofing materials.

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roofing materials

The weight of roofing constructions above the truss/rafter may be estimated with the calculator below.

Roofing Materials

None
Asphalt roll roofing (1.1 lbm/ft2, 5.4 kg/m2)
Asphalt shingle or asphalt-fiberglass composite shingle (2.7 lbm/ft2, 13.2 kg/m2)
Metal roofing - aluminum or steel - panel, sheet or shingle (1.2 lbm/ft2, 5.9 kg/m2)
Terne plate - copper bearing steel sheet (0.7 lbm/ft2, 3.4 kg/m2)
Wood shingle or shake (2.4 lbm/ft2, 11.7 kg/m2)
Zinc roofing (1.6 lbm/ft2, 7.8 kg/m2)

Copper-asphalt composite shingle (4.2 lbm/ft2, 20.5 kg/m2)
Asphalt roll roofing (1.1 lbm/ft2, 5.4 kg/m2)
Felt, tar and gravel roofing - 3 ply (4.8 lbm/ft2, 23.4 kg/m2)
Felt, tar and gravel roofing - 4 ply (5.3 lbm/ft2, 25.9 kg/m2)
Felt, tar and gravel roofing - 5 ply (6.1 lbm/ft2, 29.8 kg/m2)
Felt, tar and slag roofing - 3 ply (4.5 lbm/ft2, 22 kg/m2)
Felt, tar and slag roofing - 4 ply (4.8 lbm/ft2, 23.4 kg/m2)
Felt, tar and slag roofing - 5 ply (5.3 lbm/ft2, 25.9 kg/m2)
Ceramic slate (5.8 lbm/ft2, 28.3 kg/m2)
Reconstituted slate (4.4 lbm/ft2, 21.5 kg/m2)

Clay tile (10.8 lbm/ft2, 52.7 kg/m2)
Asphalt roll roofing (1.1 lbm/ft2, 5.4 kg/m2)
Concrete tile (9.3 lbm/ft2, 45.4 kg/m2)
Slate - 1/4" to 3/16 thick (9.1 lbm/ft2, 44.4 kg/m2)
Slate - 3/8" thick (12.8 lbm/ft2, 62.5 kg/m2)
Slate - 1/2" thick (18.8 lbm/ft2, 91.8 kg/m2)
Slate - 3/4" thick (26.0 lbm/ft2, 127 kg/m2)

Sheating Materials

Plywood

None 5/16" thick (1.0 lbm/ft2, 4.9 kg/m2) 3/8" thick (1.1 lbm/ft2, 5.4 kg/m2) 7/16" thick (1.3 lbm/ft2, 6.3 kg/m2) 15/32" thick (1.4 lbm/ft2, 6.8 kg/m2) 1/2" thick (1.5 lbm/ft2, 7.3 kg/m2) 19/32" thick (1.8 lbm/ft2, 8.8 kg/m2) 5/8" thick (1.9 lbm/ft2, 9.3 kg/m2) 23/32" thick (2.2 lbm/ft2, 10.7 kg/m2) 3/4" thick (2.3 lbm/ft2, 11.2 kg/m2) 7/8" thick (2.3 lbm/ft2, 11.2 kg/m2) 1" thick (3.0 lbm/ft2, 14.6 kg/m2) 1 1/8" thick (3.3 lbm/ft2, 16.1 kg/m2)

Oriented Strand Board (OSB), Com-Ply

5/16" thick (1.1 lbm/ft2, 5.4 kg/m2) 3/8" thick (1.2 lbm/ft2, 5.9 kg/m2) 7/16" thick (1.4 lbm/ft2, 6.8 kg/m2) 15/32" thick (1.5 lbm/ft2, 7.3 kg/m2) 1/2" thick (1.7 lbm/ft2, 8.3 kg/m2) 19/32" thick (2.0 lbm/ft2, 9.8 kg/m2) 5/8" thick (2.1 lbm/ft2, 10.3 kg/m2) 23/32" thick (2.4 lbm/ft2, 11.7 kg/m2) 3/4" thick (2.5 lbm/ft2, 12.2 kg/m2) 7/8" thick (2.9 lbm/ft2, 14.2 kg/m2) 1" thick (3.3 lbm/ft2, 16.1 kg/m2) 1 1/8" thick (3.6 lbm/ft2, 17.6 kg/m2)

Underlayment Materials

Asphalt impregnated felt paper

None 15 pound paper (0.2 lbm/ft2, 1 kg/m2) 30 pound paper (0.3 lbm/ft2, 1.5 kg/m2) 45 pound paper (0.5 lbm/ft2, 2.4 kg/m2)

  • 1 lbm/ft2 = 4.88 kg/m2

Note! - the weight of truss/rafter must be added to calculate the dead load of the roof.

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