What is a green roof?

What is a green roof?

Lisa Andrews (Horticulturalist) gives expert video advice on: How heavy are the materials used for roof terraces?; Can I tile a roof terrace?; Can I lay a lawn on a roof terrace? and more...

A green roof is a roof where either part or all is covered in vegetation such as sedum. It is grown over a suitable sub straight, which is laid over a waterproof membrane. A green roof can also indicate one where the use of solar panels leads to an environmentally friendly roof.