The number of roof slates that are needed depends on the slate size and the lap in mm.
How many roof slates in a square metre.
For example if you re using a 20 10 slate 500mmx250mm you will require 21 slate per m2.
Need to find out how many slate per square.
The answer depends on the length and width of the slate and also the headlap that is used when installing.
The amount of slates you need per square metre m2 depends on which slate size you re using.
Tile batten gauge for slate.
3 97 x 12 6 x 2 100 04m total roof area when you know this you can work out all the materials needed to complete your project.
This calculator will estimate the following number of slates required per square metre.
This table shows the required number of slates per square metre for effective coverage.
The normal headlap is 3 inches but this may need to be increased when installing on a lower slope roof.
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.
Simply select the size of slate you need and enter the size of your roof in m2 into the box.
How many roof slates per m2.
A square is a 10 10 foot section use the calculator below.
How many roof tiles do i need.
Holing gauge for holing slates.
Please enter the dimensions in the white fields below and click calculate to show the results.
The values shown in the slate coverage chart above are calculated using nominal sizes and incorporate a 5mm jointing gap.