The CM20 High-visibility Yellow Cavity Drain Membrane is a 20mm studded membrane, suitable for Type C waterproofing and delivering a grade 3 environment to BS8102:2022 and NHBC Chapter 5.4.
The CM20 High-visibility Yellow Cavity Drain Membrane is a 20mm studded membrane, suitable for Type C waterproofing and delivering a grade 3 environment to BS8102:2022 and NHBC Chapter 5.4. CM20 Yellow is the highest drainage capacity membrane in the Wykamol Waterproofing range. CM20 Yellow is also an excellent radon barrier and has passed all the relevant tests for resistance to this gas.
TYPICAL USES
Radon barrier approved - Walls, Floors, Vaults, Tunnels and Above and below ground level Waterproofing applications.
| Product Description | CM20 High Visibility Membrane, 2 m x 10 m | CM20 High Visibility Membrane, 2 m x 20 m |
| Product Code | CM202YELLOWX10 | CM20YELLOW2X20 |
| Packaging and Size | 2m x 10m | 2m x 20m |
| Coverage | 20 m² | 40 m² |
| Storage | Store in an upright position, under cover and away from high temperatures and open flames. | Store in an upright position, under cover and away from high temperatures and open flames. |
| Life Expectancy | Shelf life is the lifetime of the structure, when stored and installed in line with the datasheet recommendations. | Shelf life is the lifetime of the structure, when stored and installed in line with the datasheet recommendations. |
| Product Description | CM20 High Visibility Membrane, 2 m x 10 m | CM20 High Visibility Membrane, 2 m x 20 m |
| Product Code | CM202YELLOWX10 | CM20YELLOW2X20 |
| Packaging and Size | 2m x 10m | 2m x 20m |
| Coverage | 20 m² | 40 m² |
| Storage | Store in an upright position, under cover and away from high temperatures and open flames. | Store in an upright position, under cover and away from high temperatures and open flames. |
| Life Expectancy | Shelf life is the lifetime of the structure, when stored and installed in line with the datasheet recommendations. | Shelf life is the lifetime of the structure, when stored and installed in line with the datasheet recommendations. |
• High-grade material with good visibility for dark basements.
• Easy to see joints avoiding trip hazards.
• Part of a type C cavity drain membrane system in line with BS8102:2022.
• Gives a high water void volume of 14 litres/m².
• Quick to install - easy to roll out along floors.
• Creates a dry, habitable living space in areas previously suffering from damp or wet conditions.
• Easily cut down using a sharp blade.
• Waterproof, salt inhibiting, root and contaminate resistant.
• Little or no damage to the existing structure.
• Low and high-temperature tolerance.
• Available in rolls of 2m x 20m and 2m x 10m* (*only 20 kg in weight)
• Ideal radon barrier membrane
