Green Roof Drainage System /sheet drain

Specifications Green Roof Draniage System

provides key drain components for successful greenroofs:

Green Roof Drainage System, Green Roof drain sheet,drain sheet    provides key drain components for successful greenroofs: Root Barrier Fabric Drain Core Composites Filter Fabric  Greenroofs must have a drain layer to prevent water from accumulating on the roof or in the substrate. Good roofing practices require no water ponding. Greenroofs are no exception.   A drainage expert should be consulted regarding the physical characteristics of the drainage & filter fabric layers to assure they provide adequate water flow for peak rainstorms. Drain layer is a pre-assembled greenroof drainage system, consisting of a high strength plastic core & two layers of geosynthetic fabric attached top and bottom. Lightweight and easy to install High strength and crush resistant High Flow capacity Pre-assembled drain system Built in water retention chambers Low cost Reduces weight of total system by eliminating sand or gravel Prevents root penetration into drain layer Filters fine particles & ensures drainage efficiency Unimpeded drainage is assured in greenroof systems because the drain layer is applied over the entire roof area.   The drain layer serves the dual purpose of keeping the soil well aerated & in some cases also acts as a water retention layer.