Slate Roof Weight Per Square Metre

Ft kilograms per square meter kg m 2 source.

Slate roof weight per square metre.

The load increases with the use of heavier roofing material. A clay tiled roof may have a dead. Back in 1926 the commercial standard slate thickness was 3 16. Roofing slate created by nature over 500 million years ago has been used as a roof covering for more than a thousand years.

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. Weight of roofing materials. The number of roof slates that are needed depends on the slate size and the lap in mm.

How much does slate weigh. This table shows the required number of slates per square metre for effective coverage. 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. These are the weights of typical actual products.

Asphalt shingles 3 tab or strip 1 95 lbs. The dead load of a typical asphalt shingled wood framed roof is about 15 pounds per square foot. The values shown in the slate coverage chart above are calculated using nominal sizes and incorporate a 5mm jointing gap. Roof span 2 x roof pitch constant for rafter rafter length.

The weights of other actual products of the same type may vary. 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.