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. 12,5 mm . 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.The ND 4+1 Drainage System is suitable for warm roof and inverted roof constructions.