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ND WSB-50 / ND WSB-80 Root Barrier

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-50 / ND WSB-80 Root Barrier
ProductND WSB-50 Root BarrierND WSB-80 Root Barrier
Dimensions25 m x 4 m37.5 m x 4 m
Packaging100 m², roll150 m², roll
Thicknessapprox. 0.5 mmapprox. 0.8 mm
Weightapprox. 468 g/m²approx. 748 g/m²
Materiallow density polyethelyne (LDPE)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.


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