Green Roof Drainage Membrane

All three types of roofs require specific layers of roofing materials not found on regular roofs.

Green roof drainage membrane. To prevent root damage to the waterproofing membrane some manufacturers incorporate a root repellant agent in a roof membrane s formulation and others offer a physical root barrier. They are planted over a waterproofing membrane often consisting of layers including drainage systems irrigation systems and root barriers. The drainage layer is installed over the waterproofing membrane to remove excess water and prevent saturation of the growing medium. Oldroyd s multi layer technology allows recycled material to be used in the inner core without the loss of performance normally associated with the use of recycled plastic in drainage membranes.

Green roof drainage storage membrane 20mm cavities. Permaseal 20p is a high quality green roof membrane. Manufactured from hdpe it acts as a drainage layer and high volume water storage membrane for green roofs. It can be used in both extensive and intensive green roof systems on houses sheds garages and larger commercial projects.

Green roofs are found on buildings that are either partially or completely covered by vegetation like grass plants or even small trees. Green roofs are only as green as the materials from which they are constructed. 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.