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ND X20 Drainage System

High-performance, CE-marked drainage system with a water reservoir for roofs planted with extensive vegetation. The approx. 20 mm high drainage system prevents the build-up of hydrostatic pressure on the waterproofing membrane, protects it against mechanical loads and ensures that vapour is able to evaporate freely from the XPS insulation on an inverted roof. It's a 3-in-1 product (on roll) consisting of a filter geotextile and a vapour-permeable geotextile that are glued (not thermally bonded) to the dimpled core.

ND X20 Drainage System
Dimensions approx. 30 m x 1.20 m
Packaging approx. 36 m², roll
Weight approx. 1,014 g/m²
Construction height approx. 20 mm
Compressive strength approx. 270 kPa
Compressive strength at 10 % deformation approx. 270 kPa
Material dimpled core recycled, high impact polystyrene (HIPS)
Material filter geotextile - approx. 10 cm overlap both sides polypropylene (PP)
Material vapour-permeable geotextile- approx. 10 cm overlap both sides polypropylene (PP)
Perforations/m² approx. 1,540, Ø 6.3 mm
Water reservoir approx. 3.5 l/m²
Drainage capacity 2 % fall (20 kPa) - dimple down approx. 0.6 l/(s.m)
Drainage capacity 2 % fall (20 kPa) - dimple up approx. 0.4 l/(s.m)
CE hEN 13252

ND X20 Drainage System

The allrounder especially designed for extensive green roofs


Applications

  • Nophadrain Extensive Green Roof System - warm roof construction
  • Nophadrain Extensive Green Roof System - inverted roof construction
  • Nophadrain Extensive Green Roof System - pitched roof until 15° (with ND SM-50 Substrate Panels)

Downloads


Download the ND X20 Drainage System folder



Watch the introduction video of the ND X20 Drainage System