Near-natural stormwater management: The system build-up combines the advantages of an insect-friendly, biodiverse extensive green roof with an additional water storage and a temporary retention volume with controlled-flow roof drain. This system build-up helps to bring the water balance of built-up areas closer to that of undeveloped areas.
The key part of the system is the Retention Spacer (RSX 65 till RSX 170) in combination with highly capillary Capistrips® and Capifleece®, an innovative highly capillary nonwoven fabric. Once water begins to accumulate in the spacers, four Capistrips® absorb it at the contact surfaces, draw it upwards in a capillary action. Subsequently the Capifleece® distributes it to the overlying substrate layer. The plant roots in that area will take up just as much water as they need at any given time – it is specifically this function that comes closest to natural conditions.
Suction height / Max. capillary output
60 mm / 14 Litres per m² and day
100 mm / 8,5 Litres per m² and day
120 mm / 6,5 Litres per m² and day
140 mm / 4,5 Litres per m² and day
160 mm / 3 Litres per m² and day
