Slate Roof Weights

Weight of roofing materials.

Slate roof weights.

Not only for the building s structural integrity but shipping costs labour installation costs and lead times will play a big factor. Per square smaller roofing slates actually weigh more than larger slates and come in at around 800lbs square while larger slates 12 24 weigh about 700lbs square. Pounds per square foot lb ft 2 pounds per square 100 sq. Weight will very with thickness of the slate.

Felt tar and slag roofing 5 ply 5 3 lb m ft 2 25 9 kg m 2 ceramic slate 5 8 lb m ft 2 28 3 kg m 2 reconstituted slate 4 4 lb m ft 2 21 5 kg m 2 clay tile 10 8 lb m ft 2 52 7 kg m 2 asphalt roll roofing 1 1 lb m ft 2 5 4 kg m 2 concrete tile 9 3 lb m ft 2 45 4 kg m 2 slate 1 4 to 3 16 thick 9 1 lb m ft 2 44 4 kg m 2. Average weight for one square of 1 4 thick roofing slate is 800lbs. Ft kilograms per square meter kg m 2 source. Asphalt shingles 3 tab or strip 1 95 lbs.

When ordering a slate s thickness considering the weight should be top priority. To calculate the weight per square metre simply multiply the weight per slate given below by the number of slates per square metre for the same slate listed above. Some markets such as california and texas prefer a lighter weight slate roof. Weight per square metre.

500 x 250mm slate 4 5mm thick 1 889 kg x 18 8 at 75mm lap 35 51kg per square metre. The weights of other actual products of the same type may vary.