The drainage layer can be created using different lightweight aggregate materials such as gravel clay tiles and lava rock.
Green roof aeration layer material.
Drainage protection filtration layer it is used for lightweight green roofs terraces and has many functions.
It also acts as a filter fabric preventing fine particles from being washed out of the substrate soil ensuring.
The basic anatomy of a green roof consists of vegetation growing medium filter membrane drainage layer waterproof root repellant layer roofing membrane support for plantings above thermal insulation vapor control layer and structural roof support.
Bauder sdf drainage layer.
Root barriers are often used in green roofs to provide some protection to the waterproofing from invasive stolons rhizomes and from woody roots from trees and shrubs.
The root resistant filter fabric prevents roots from affecting the efficiency of the drainage aeration layer.
The most common root barriers used are thin polyethylene sheets laid over the waterproofing membrane.
They can also be used to increase the size of the root growth zone and provide space for an aeration system.
As the market for green roofing develops the proper design and understanding of green roof components is imperative.
Protection drainage and filtration.
The green roof drainage layer thickness makes sure that nothing can go wrong below offering a solid and effective guard.
It is made of a filtration veil and the polyamide monofilament fibre network layer.