Green Roof Protection Fabric

Root barrier lower filter fabric water retention mat upper filter fabric growing medium and sedum.

Green roof protection fabric.

Green roof systems of this type are drained by a multi layer fabric mat called a drainage mat that combines soil separation drainage and protection functions. The roofing base assembly and a vegetated roof system. Aggredrain is most commonly used at a 1 minimum depth over a moisture retention mat grs mrm 14 or grs mrm 30. It is able to absorb 3 6 l m moisture depending on the product.

The 6 slotted triangle shape is used beneath the aggredrain layer and allows for water to flow freely. Green roof components can include. Green roof solutions protection mats are specially designed needle punched fleece constructed of 100 recycled polyester and polypropylene fibers. A green roof system consists of two major groups of components.

It protects the waterproofing and the insulation of the green roof. 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. A filter fabric layer on top should separate the aggredrain from the growing media. The most common root barriers used are thin polyethylene sheets laid over the waterproofing membrane.

These may not be required if the waterproof membrane is certified as root resistant. This geotextile is made of polyester fibres a mixture of mechanically reinforced fibres and regenerated polyester and polypropylene.