How Many Roof Slates 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.

How many roof slates per m2.

From your chosen size of slate and headlap calculated using our headlap tables use this coverage table to calculate how many slates per m 2 your roof will require. Please enter the dimensions in the white fields below and click calculate to show the results. Holing gauge for holing slates. The number of roof slates that are needed depends on the slate size and the lap in mm.

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. This table shows the required number of slates per square metre for effective coverage. Tile batten gauge for slate. The values shown in the slate coverage chart above are calculated using nominal sizes and incorporate a 5mm jointing gap.

If you know the surface area of your roof you can use our simple roof slate calculator to give you the exact amount of slates you require to complete the job. The most popular slate size in southern england is 500 x 250mm and 400 x 250mm in the north of england and scotland. 24 12 600mmx300mm 13 slate per m2. Simply select the size of slate you need and enter the size of your roof in m2 into the box.

On average slate measured at approximately 1 4 inch thick weighs between 700 and 800 pounds per square.