Extensive Green Roof Components

 

Waterproofing layers

The build up for the waterproofing system that sits under the extensive green roof set up typically follows the Bauder Total Roof System which has a choice of root resistant capping sheets to either chemically or mechanically prevent damage through root penetration whilst still ensuring the waterproofing integrity of the roof.  An extensive green roof can also be applied to a single-ply Thermoplan-T waterproofing system, though this is only recommended in certain circumstances.

Bituminous Green Roof System	Plug Planted Extensive Substrate System	Single Ply Green Roof System

Drainage and moisture retention fleece layers

The main function of the drainage and moisture retention fleece is provide correct drainage for the roof and to balance water levels for the plants by preventing them from being deprived of water and also to avoid their roots from being immersed in water for long periods of time.

Bauder extensive growing substrate

The Bauder extensive growing medium is a combination of re-cycled brick, expanded shale and composted pine bark which is ideal for the extensive plant choice whilst also reducing overall weight.