How Many Slates Will I Need For My Roof

Area of slope rafter length x roof length x 2 on both sides of the roof with the figures in this example the calculation would look like this.

How many slates will i need for my roof. Need to find out how many slate per square. The first thing you need to do is find to find these three measurements. Well we at roofing megastore are here to help. The normal headlap is 3 inches but this may need to be increased when installing on a lower slope roof.

Simply select the size of slate you need and enter the size of your roof in m2 into the box. A 24 12 slate 600mmx300mm demands only 13 slate per m2. Cover width of your chosen tile we ll call this x for this example batten gauge of your chosen tile we ll call this y for this. How many roof tiles do i need.

With this rough guide designed to help you calculate how many tiles your roof needs. 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. For example if you re using a 20 10 slate 500mmx250mm you will require 21 slate per m2. The general rule of thumb and for this example we ll use the most common size of 500 250 or 20 10 is for every 1 meter squared of roof you need 21 slates.

This is a question we hear all the time so we designed a very simple roof slate calculator to help you gauge how many slates you need for your roof. A square is a 10 10 foot section use the calculator below. The amount of slates you need per square metre m2 depends on which slate size you re using.