SURFASDRAIN 20 is a high-density polyethene (HDPE) membrane which may be used as part of a Type C Drainage Protection according to BS 8102:2009.

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How does SURFASDRAIN 20 work:

SURFASDRAIN 20 is placed on the prepared surface and directs the water to the drainage channel.

How do I prepare the surface before applying SURFASDRAIN 20:

The substrate must be free from damages and as flat as possible. Running water that is capable of carrying silt into the drains should be stopped.  The volume of water penetrating should be measured to ensure SURFASDRAIN 20 is capable of controlling the flow of water (10 litres/second/m²).

Key Features & Benefits

  • High density polyethylene (HDPE)
  • Suitable for use as part of Type C Drainage Protection (BS 8102:2009)
  • 20mm dimpled membrane
  • Easy to install
  • Suitable for above and below ground applications
  • Withstands root penetration when overlaps are sealed with Overseal Tape SGS Quality Management System according to ISO:9001

Specification Tip for Design Professionals:
SURFASDRAIN 20 may be specified by name or by using the following description: a is a high-density polyethylene (HDPE) 20mm dimpled membrane, which may be used as part of a Type C Drainage Protection according to BS 8102:2009.

Test Results:

  • SGS Quality Management System according to ISO:9001

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