Description
Wykamol CM20 Cavity Drain Membrane 2m x 20m
Available in other variants - View all CM20 Membrane Products
Wykamol CM20 is a 20mm studded cavity drain membrane designed for use within Type C waterproofing systems. Offering the highest drainage capacity within the Wykamol waterproofing range, CM20 is engineered to manage water ingress in below-ground structures and waterproofing projects. With a water void capacity of 14 litres/m², the membrane helps channel water to a suitable drainage system, supporting the creation of dry internal environments in accordance with BS 8102:2009 waterproofing principles.
Key Features & Benefits
- 20mm studded cavity drain membrane
- Designed for Type C cavity drain waterproofing systems
- Complies with BS 8102:2009 waterproofing guidance
- Suitable for projects designed to NHBC Chapter 5.4 requirements
- High drainage capacity membrane
- Water void volume of 14 litres/m²
- Lightweight and flexible for easier installation
- Waterproof construction
- Resistant to salts commonly found in below-ground environments
- Resistant to contaminants and root ingress
- Suitable for above and below ground applications
- Easy to cut and trim on site
- Minimal impact on existing structures
- BBA Certified
- Designed for the lifetime of the structure
Suitable Applications
- Basement waterproofing systems
- Cellar waterproofing projects
- Type C cavity drain waterproofing systems
- Waterproofing walls and floors
- Waterproofing vaults
- Waterproofing tunnels
- Below-ground structures
- Radon protection systems
- Residential waterproofing projects
- Commercial waterproofing projects
- Basement conversions
- New-build waterproofing installations
Technical Information
- Product Type: Cavity drain membrane
- Membrane Stud Height: 20mm
- Roll Size: 2m x 20m
- Coverage: 40m²
- Product Code: CM202X20
- Water Void Capacity: 14 litres/m²
- Waterproofing Type: Type C cavity drain system
-
Compliance:
- BS 8102:2009
- NHBC Chapter 5.4
- BBA Certificate: 18/5595
-
Storage:
- Store upright
- Store under cover
- Protect from high temperatures
- Keep away from open flames
- Life Expectancy: Lifetime of structure
Frequently Asked Questions
What is Wykamol CM20 used for?
CM20 is designed for managing water ingress within Type C cavity drain waterproofing systems used in basements, cellars and below-ground structures.
What drainage capacity does CM20 provide?
The membrane provides a water void volume of 14 litres per square metre, making it the highest drainage capacity membrane within the Wykamol range.
Can CM20 be used on both walls and floors?
Yes. The membrane is suitable for waterproofing walls, floors, vaults and tunnels as part of a correctly designed waterproofing system.
Is CM20 suitable for basement conversions?
Yes. CM20 is commonly specified in basement and cellar conversion projects to help create dry, usable internal spaces.
BBA
BBA Certification Wykamol CM20 Cavity Drain Membrane 18 5595
Performance
Declaration Of Performance CM20 Cavity Drain Membrane WPDOP05 2019 08
TDS
Images
Video
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Security
You may also be interested in
Recently viewed
What Our Customers Say