Slate Roof Weight Per Square Metre

Back in 1926 the commercial standard slate thickness was 3 16.

Slate roof weight per square metre.

If the roof pitch is 35 the roof span is 6 5m wide and the roof length is 12 6m using the reference guide graphic above the calculation for the slope would look like this. 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. Roofing slate created by nature over 500 million years ago has been used as a roof covering for more than a thousand years. 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.

Weight of roofing materials. A clay tiled roof may have a dead. The number of roof slates that are needed depends on the slate size and the lap in mm. Here is an example of how the roofing measurement process works on a basic duo pitched roof.

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. Ft kilograms per square meter kg m 2 source. How much does slate weigh.

That s a great question especially when you are comparing it against other roofing products. The values shown in the slate coverage chart above are calculated using nominal sizes and incorporate a 5mm jointing gap. The load increases with the use of heavier roofing material. This table shows the required number of slates per square metre for effective coverage.

These are the weights of typical actual products. Asphalt shingles 3 tab or strip 1 95 lbs.