What is VersiDrain® 25P
VersiDrain® 25P is an interlocking plastic water retention and drainage tray designed to store and drain water under extensive green roof systems.
VersiDrain® 25P trays are positioned on the waterproofing membrane, covered with geotextile, growth media and plants. Water and soluble nutrients become stored in an array of mini reservoirs or cells and are returned to the soil, via capillary action for plant uptake, when required.
VersiDrain® 25P trays incorporate interconnected channels that allow water to flow between the reservoirs. Perforations in the channels allow excess water to flow to drainage outlets.
VersiDrain® 25P protects waterproofing membranes against damage and the high compressive strength effectively supports the weight of growing media, plant species and other weight bearing loads.
VersiDrain® 25P ideal for use under lightweight extensive greenroofs, the 8 litres/m2 of stored water reduces the reliance on irrigation.