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Wykamol CM20 Cavity Drain Membrane

Save £21.34 inc.VAT

Size: CM20 2m x 10m
Price:
Sale price£114.99 inc.VAT Regular price£136.33 inc.VAT

Description

CM20 Cavity Drain Membrane – High-Capacity Waterproofing Solution

The CM20 Cavity Drain Membrane is a 20mm studded waterproofing membrane, designed for Type C cavity drain systems. Providing a Grade 3 environment in compliance with BS 8102:2009 and NHBC Chapter 5.4, it is the highest drainage capacity membrane in the Wykamol Waterproofing range.

Key Benefits:

Compliant with BS 8102:2009 & NHBC Chapter 5.4 – Meets industry standards for Type C waterproofing.
Superior Drainage Capacity – Provides a high water void volume of 14 litres/m², effectively managing water ingress.
Quick & Easy InstallationLightweight & flexible, easily rolled out along floors.
Creates a Dry, Habitable Space – Transforms previously damp areas into usable living or storage spaces.
Waterproof, Salt Inhibiting & Contaminant Resistant – Protects against moisture, salts, roots, and pollutants.
Minimal Structural ImpactNo significant alteration to existing walls or floors.
Temperature ResistantPerforms in both low and high-temperature conditions.
Durable & High-Grade Material – Ensures long-lasting waterproofing performance.
Easy to Cut & Adjust – Can be trimmed with a sharp blade for precision fitting.

Typical Applications:

Basements & Cellars (walls & floors – creating dry living spaces)
Radon Barrier Protection (approved for radon control)
Waterproofing for Walls, Floors, Vaults & Tunnels
Above & Below Ground-Level Applications (residential & commercial use)

Available Sizes:

📏 2m x 20m & 2m x 10m Rolls (20kg weight option available for easier handling)

The CM20 Cavity Drain Membrane is the ultimate solution for high-capacity water management, ensuring long-term waterproofing for basements, tunnels, and below-ground structures.

Details
Product Description CM20 Waterproofing Membrane, Black CM20 Waterproofing Membrane, Black
Product Code CM202X20 CM202X10
Packing and Size 2 m x 20 m 2 m x 10 m
Coverage 40 m² 20 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 Lifetime of Structure Lifetime of Structure
BBA

CM20 BBA

BBA Certification Wykamol CM20 Cavity Drain Membrane 18 5595

Performance

Declaration Of Performance CM20 Cavity Drain Membrane WPDOP05 2019 08

TDS

CM20 CDM Data Sheet

Images

Wykamol CM20 Cavity Drain Membrane

CM20 Cavity Drain Membrane - Basement Membrane

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