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.
Slate roof weight per square metre uk.
Holing gauge for holing slates.
Weight of roofing materials.
Asphalt shingles 3 tab or strip 1 95 lbs.
Roofing slate created by nature over 500 million years ago has been used as a roof covering for more than a thousand years.
The amount of slates you need per square metre m2 depends on which slate size you re using.
You will need the following amount of slate per m2.
Here is an example of how the roofing measurement process works on a basic duo pitched roof.
Weight per square metre 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.
Across a full roof with a tiled area of 170m2 this could equate to a saving of 1 700 or more compared to home grown slate.
The number of roof slates that are needed depends on the slate size and the lap in mm.
Total linear run of tile batten in metres.
Pounds per square foot lb ft 2 pounds per square 100 sq.
The weights of other actual products of the same type may vary.
A 24 12 slate 600mmx300mm demands only 13 slate per m2.
That s a great question especially when you are comparing it against other roofing products.
One advantage of going for a british or spanish product is that it will meet european standards bs en.
500 x 250mm slate 4 5mm thick 1 889 kg x 18 8 at 75mm lap 35 51kg per square metre.
The values shown in the slate coverage chart above are calculated using nominal sizes and incorporate a 5mm jointing gap.
Back in 1926 the commercial standard slate thickness was 3 16.
This calculator will estimate the following number of slates required per square metre.
Roof span 2 x roof pitch constant for rafter rafter length.
600 300 24 12 13 slate per m2 500 250 20 10 21 slate per m2 450 250 18 10 23 slate per m2 400 250 16 10 27 slate per m2 we ve built a simple tool to calculate the amount of slate you need for your roof.
Please enter the dimensions in the white fields below and click calculate to show the results.
Ft kilograms per square meter kg m 2 source.
This table shows the required number of slates per square metre for effective coverage.
Tile batten gauge for slate.
These are the weights of typical actual products.
