Slate Roof Weight Per Square Metre

Siga 114 natural slate.

Slate roof weight per square metre.

400 x 250mm 400 x 375mm. 500 x 250mm slate 4 5mm thick 1 889 kg x 18 8 at 75mm lap 35 51kg per square metre. Siga 56v natural slate. Holing gauge for holing slates.

The weight of truss rafter must be added to calculate the dead load of the roof. Pounds per square foot lb ft 2 pounds per square 100 sq. 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.

Total linear run of tile batten in metres. How much does slate weigh. 25 tiles per m. Asphalt shingles 3 tab or strip 1 95 lbs.

The values shown in the slate coverage chart above are calculated using nominal sizes and incorporate a 5mm jointing gap. Roofing slate created by nature over 500 million years ago has been used as a roof covering for more than a thousand years. 20 tiles per m. Roof span 2 x roof pitch constant for rafter rafter length.

20 tiles per m. These are the weights of typical actual products. The number of roof slates that are needed depends on the slate size and the lap in mm. Slate sizes can start as small as 6 12 inches and be as large as 16 24.

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. Tile batten gauge for slate. Weight of roofing materials. Ft kilograms per square meter kg m 2 source.

Back in 1926 the commercial standard slate thickness was 3 16. Tiles per square metre. For example if you re using a 20 10 slate 500mmx250mm you will require 21 slate per m2. Some thicker slates can be much larger and heavier slate per square calculator.

Here is an example of how the roofing measurement process works on a basic duo pitched roof. 500 x 250mm 500 x 375mm. A 24 12 slate 600mmx300mm demands only 13 slate per m2. 1 lb m ft 2 4 88 kg m 2.

This table shows the required number of slates per square metre for effective coverage. This calculator will estimate the following number of slates required per square metre. Please enter the dimensions in the white fields below and click calculate to show the results. Siga 35 natural slate.