How much does Enviromat weigh and how do I know if my roof is strong enough?
The saturated weight of Enviromat is around 40kg per square metre; When it’s on a roof, you also need to factor in the saturated weight of the water retention blanket beneath it – around 9Kg per square metre and also allow a little extra for snow. It’s very difficult to judge the strength of a roof without seeing it. Q Lawns recommends that you speak to a structural engineer or a builder before beginning your green roof project.
