Double cuspated, deck and flat roof drainage membrane, that incorporates a polypropylene geotextile filter layer, bonded to a water impermeable HDPE (High Density Polyethylene) core. The double cuspated design provides two layers of drainage.
01732 360 095
Double cuspated, deck and flat roof drainage membrane, that incorporates a polypropylene geotextile filter layer, bonded to a water impermeable HDPE (High Density Polyethylene) core. The double cuspated design provides two layers of drainage.
Key Benefits
Typical Applications
As the drainage layer above a deck, balcony or flat roof waterproofing membrane, particularly where:
Also suitable for use as a vertical drainage layer when used as part of a professionally designed and installed externally applied basement waterproofing system.
Suitable Substrate
Directly above primary deck or roof waterproofing membrane.
Technical Data
Installed Performance | Result |
Compressive strength – Temporary loading | 280 kPa |
Compressive strength – Permanent loading | 10 kPa |
Water vapour diffusion resistance – Sd value | >604m |
Water vapour diffusion resistance – µ value | >1208000µ |
Water vapour diffusion resistance | >3020 MNs/g |
Tensile strength (Machine direction) | 13.6k N/m2 |
Tensile strength (Cross direction) | 14.7k N/m2 |
Chemical resistance – Excellent | 100% |
Oxidation resistance – Excellent | 100% |
Our staff are able to provide guidance for projects of all sizes, whether you require some general advice about damp or waterproofing, or support with technical drawings and specifications.