Slate Roof Weights

These are the weights of typical actual products.

Slate roof weights.

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. 500 x 250mm slate 4 5mm thick 1 889 kg x 18 8 at 75mm lap 35 51kg per square metre. 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. Weight per square metre. Weight of roofing materials. Average weight for one square of 1 4 thick roofing slate is 800lbs.

Ft kilograms per square meter kg m 2 source. Not only for the building s structural integrity but shipping costs labour installation costs and lead times will play a big factor. The weights of other actual products of the same type may vary. On average slate measured at approximately 1 4 inch thick weighs between 700 and 800 pounds per square.

When ordering a slate s thickness considering the weight should be top priority. Some markets such as california and texas prefer a lighter weight slate roof.