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Smart systems for green and utility roofs

This high-quality plastic film protects a non-root-resistant waterproofing membrane from damage caused by root penetration from extensive vegetation (ND WSB-50) and intensive vegetation (ND WSB-80). Tested for root resistancy.

ND WSB-80 Root Barrier
25 m x 4 m
100 m², roll
approx. 0.8 mm
approx. 748 g/m²
low density polyethylene (LDPE)


The root-barrier sheet is laid loose on top of the waterproofing membrane that is not root-resistant. The overlap should be at least 100 mm and has to be heat-welded with a heat gun. The heat gun should be adjusted to the optimum temperature for LDPE foils. In general, the recommendations of the manufacturers should be followed. We recommend a welding temperature of 265/280 degrees.


Determination of resistance to root penetration according to hEN EN 13948:2007.


  • Nophadrain Extensive Green Roof System (ND WSB-50)
  • Nophadrain Intensive Green Roof System (ND WSB-80)