Grass Roof Construction

The first step is the covering of the house roof with plastic sheeting.

Grass roof construction.

Used over a whole roof a green roof will be the single overriding design influence on the house as well as impacting on the construction right down to the foundations. Bitumen roofing felt is nailed to the sarking and a dimpled cavity drainage membrane is laid over the top dimples face down to form a drainage layer. If you are using sedum blankets then you don t require any additional growing medium or soil. Build a living roof green roof.

A green roof is in ecological terms a great and simple thing to do. Extensive green roofs normally have an attractive low layer of vegetation around 80 100mm high such as grass moss sedum or small flowers. In modern turf roof construction bitumen roofing felt combined with dimpled plastic drainage membranes are usually used in place of birch bark. This thick sheeting will be the grass roof waterproofing membrane.

The turf is then laid over this drainage layer. To attach the membrane to the roof structure use asphalt mastic. I liked the idea of having a bit more greenery in the property we live. It replaces the ecology the new house sits upon thereby replacing the habitat that a house takes away.

The stud construction of the typical frame structure for instance doesn t lend itself to sod roofing but log cabins and buildings of post and beam design are especially well suited for such a. The overlapping of two plastic sheeting must be at least 4 inches.