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Smart systems for green and utility roofs

High-performance, CE-marked drainage system with high compressive strength and a specialmono-filament woven geotextile. The ND Drainage System prevents the build-up of hydrostatic pressure on the waterproofing membrane and protects it against mechanical loads. This drainage system is specially suited for installing pedestrian and vehicular pavements on sub-base layers made of rubble and permeable concrete. It's a 3-in-1 product (on roll) consisting of a woven filter geotextile and a pressure dividing slip film (ND 620) that are glued (not thermally bonded) to the dimpled core.

ND 620 Drainage System
approx. 32 m x 1.25 m 
approx. 40 m², roll
approx. 1,281 g/m²
approx. 12.5 mm
approx. 900 kPa
recycled, high impact polystyrene (HIPS)
polypropylene (PP)
polypropylene (PP)
5.27 l/(s.m)
0.72 l/(s.m)
hEN 13252


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Download the brochure below