Visqueen CM20 Membrane - Studded cavity membrane
Verified by manufacturer 5 months ago
20 mm studded cavity membrane formed from 1 mm thick high density polyethylene (HDPE).
Application
Suitable for new and retrofit substructure walls, floors, vaults and tunnels.
Description
Visqueen CM20 Membrane is a 20 mm studded cavity membrane formed from 1 mm thick high density polyethylene (HDPE). The cavity membrane is black in colour and supplied in rolls of 2 x 20 m which includes a 100 mm stud free overlap flange along the length of the roll.
Features and benefits:
- Suitable for use as part of a Type C waterproofing protection system in accordance with BS 8102: 2022.
- Compliant with the requirements of NHBC Chapter 5.4 as a method of waterproofing protection.
- Suitable for heritage buildings and conservation projects - causes little or no damage to the existing structure.
- 1 mm HDPE membrane - acts as a radon barrier.
- Multi-use.
See manufacturer's literature for installation and preparation guidelines.
General information
Color | Black |
Material | High density polyethylene (HDPE) |
Shape | Rectangle |
Length | 20000 mm |
Width | 2000 mm |
Height | 20 mm |
Uniclass | |
CAWS | J40/47 High-density polyethylene/ polypropylene studded cavity drain membrane J40/290 High-density polyethylene/ polypropylene studded cavity drain membrane |
Specification data - High-density polyethylene (PE-HD) studded sheets
Standard | To BS 8102: 2022. |
Third-party certification | BBA certificate pending, CE marked to EN 13967:2012+A1:2017. |
Stud height | 20 mm. |
Sheet thickness | 1 mm. |
Weight (minimum) | 1 kg/m². |
Colour | Black. |
Performance characteristics | |
Fire performance | To BS EN 13501-1, Class F. |
CompressiveStrength | To BS EN ISO 25619-2, 170 kN/m². |
TensileStrength | To BS 12311-2, 416 N (MD); 488 N (CD). |
Static load resistance | To BS 12730, >20 kg. |
InternalWaterVolume | 14.6 L/m². |
Application temperature | Recommended should be used above 5°C. |
Radon diffusion | To ISO/TS 11665-13, method C, 6.5x10¯¹² m²/s (Unjointed); 1.8x10¯¹² m²/s (Jointed). |
Watertightness | To EN 1928, pass (At 60 kPa - 24 hours). |
Literature
Visqueen CM20 Membrane
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