Description

High-performance CE-marked drainage system with an innovative dimple design made out of recycled high impact polystyrene. The core of the ND Drainage System is a perforated, vapourpermeable dimpled sheet with a high compressive strength, a construction height of approx. 27.5 mm and a water reservoir of approx. 5.8 l/m². A non-woven geotextile is glued to the back of the dimpled sheet as a filter layer and a vapour-permeable geotextile is bonded to each dimple as a protection and separation layer.