Slate Roof Weights

Asphalt shingles 3 tab or strip 1 95 lbs.

Slate roof weights. Weight per square metre. 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. On average slate measured at approximately 1 4 inch thick weighs between 700 and 800 pounds per square. 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.

The weights of other actual products of the same type may vary. Average weight for one square of 1 4 thick roofing slate is 800lbs. Not only for the building s structural integrity but shipping costs labour installation costs and lead times will play a big factor. When ordering a slate s thickness considering the weight should be top priority.

Weight will very with thickness of the slate. These are the weights of typical actual products. Some markets such as california and texas prefer a lighter weight slate roof. Slate sizes can start as small as 6 12 inches and be as large as 16 24.

Ft kilograms per square meter kg m 2 source. 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.