ND 200sv Drainage System

High-performance, CE-marked drainage system with a perforated core for podium decks on an inverted roof. The drainage system prevents the build-up of hydrostatic pressure on the waterproofing membrane. The vapour-permeable geotextile on the back protects the XPS insulation from mechanical loads and ensures that vapour is able to evaporate freely from the XPS insulation.

Dimensions (L x W)
approx. 32 m x 1.25 m
Packaging
approx. 40 m², roll
Weight
approx. 990 g/m²
Construction height
approx. 13 mm
Compressive strength
approx. 700 kPa
Material dimpled sheet
recycled, high impact polystyrene (HIPS)
Material filter geotextile
Polypropylene (PP) and Polyethylene (PE)
Material vapour-permeable geotextile
Polypropylene (PP)
Perforations/m²
approx. 1,540, Ø 6.3 mm
Water reservoir
n/a
Drainage capacity i = 1 (20 kPa)
approx. 5.29 l/(s.m)
Drainage capacity 2 % fall (20 kPa)
approx. 0.60 l/(s.m)
CE
hEN 13252

Long product description

High-performance, CE-marked drainage system with a perforated core for podium decks on an inverted roof. The drainage system prevents the build-up of hydrostatic pressure on the waterproofing membrane. The vapour-permeable geotextile on the back protects the XPS insulation from mechanical loads and ensures that vapour is able to evaporate freely from the XPS insulation.

Easy to transport

The rolls can be moved to the right place by just 1 person (with a trolley or by rolling). Divide the rolls and install.

Easy to unroll

ND drainage systems are supplied in rolls. With one motion, 3 layers are rolled out at once.

Fast to install

Roll out, overlap and done. Bonding the layers means there is no delay caused by wind, everything is in the right place at once.

Rock & roll
The ND Drainage Systems are quick and easy to install because the filter, drainage, and (sliding and) protective layers are bonded together. De ND Drainagesystemen worden op rol geleverd en zijn daardoor makkelijk te hanteren en snel uit te rollen.

Bonded, not thermally bonded
The filter, protection (and sliding) layers are bonded and not thermally bonded to the core of the dimpled membrane, to prevent damage to the mechanical and hydraulic properties of the geotextiles and the entire drainage system. Bovendien voorkomt dit dat de geotextielen tussen de noppen gedrukt worden, wat een goede drainage zou belemmeren. De overlap van het filtergeotextiel zorgt voor een optimale filtratie.

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