Slate Roof Weights

Some markets such as california and texas prefer a lighter weight slate roof.

Slate roof weights.

Ft kilograms per square meter kg m 2 source. On average slate measured at approximately 1 4 inch thick weighs between 700 and 800 pounds per square. 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.

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. The weights of other actual products of the same type may vary. Not only for the building s structural integrity but shipping costs labour installation costs and lead times will play a big factor.

These are the weights of typical actual products. Asphalt shingles 3 tab or strip 1 95 lbs. Weight of roofing materials. Weight will very with thickness of the slate.

Slate sizes can start as small as 6 12 inches and be as large as 16 24. Pounds per square foot lb ft 2 pounds per square 100 sq.