Roofing Materials - Weights

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

Roofing Materials

None
Asphalt roll roofing (1.1 lb_m /ft², 5.4 kg/m²)
Asphalt shingle or asphalt-fiberglass composite shingle (2.7 lb_m /ft², 13.2 kg/m²)
Metal roofing - aluminum or steel - panel, sheet or shingle (1.2 lb_m /ft², 5.9 kg/m²)
Terne plate - copper bearing steel sheet (0.7 lb_m /ft², 3.4 kg/m²)
Wood shingle or shake (2.4 lb_m /ft², 11.7 kg/m²)
Zinc roofing (1.6 lb_m /ft², 7.8 kg/m²)
Copper-asphalt composite shingle (4.2 lb_m /ft², 20.5 kg/m²)
Asphalt roll roofing (1.1 lb_m /ft², 5.4 kg/m²)
Felt, tar and gravel roofing - 3 ply (4.8 lb_m /ft², 23.4 kg/m²)
Felt, tar and gravel roofing - 4 ply (5.3 lb_m /ft², 25.9 kg/m²)
Felt, tar and gravel roofing - 5 ply (6.1 lb_m /ft², 29.8 kg/m²)
Felt, tar and slag roofing - 3 ply (4.5 lb_m /ft², 22 kg/m²)
Felt, tar and slag roofing - 4 ply (4.8 lb_m /ft², 23.4 kg/m²)
Felt, tar and slag roofing - 5 ply (5.3 lb_m /ft², 25.9 kg/m²)
Ceramic slate (5.8 lb_m /ft², 28.3 kg/m²)
Reconstituted slate (4.4 lb_m /ft², 21.5 kg/m²)
Clay tile (10.8 lb_m /ft², 52.7 kg/m²)
Asphalt roll roofing (1.1 lb_m /ft², 5.4 kg/m²)
Concrete tile (9.3 lb_m /ft², 45.4 kg/m²)
Slate - 1/4" to 3/16 thick (9.1 lb_m /ft², 44.4 kg/m²)
Slate - 3/8" thick (12.8 lb_m /ft², 62.5 kg/m²)
Slate - 1/2" thick (18.8 lb_m /ft², 91.8 kg/m²)
Slate - 3/4" thick (26.0 lb_m /ft², 127 kg/m²)

Sheating Materials

Plywood

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

Oriented Strand Board (OSB), Com-Ply

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

Underlayment Materials

Asphalt impregnated felt paper

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

• Load Calculator!

• 1 lb_m /ft²= 4.88 kg/m²

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