Clever Shield CM20 Cavity Drain Membrane – High-Performance Type C Waterproofing
The Clever Shield CM20 Cavity Drain Membrane is a 20mm studded membrane designed for Type C waterproofing, providing a grade 3 dry environment in compliance with BS8102:2009 and NHBC Chapter 5.4. With the highest drainage capacity in the Clever Shield range, CM20 is ideal for below-ground waterproofing and damp-proofing applications.
Key Features & Benefits:
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Type C Waterproofing System – Complies with BS8102:2009 for managing water ingress effectively.
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High Drainage Capacity – Provides a 14-litre/m² water void volume for superior moisture control.
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Quick & Easy Installation – Lightweight and simple to roll out along floors.
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Creates a Dry, Habitable Space – Transforms damp areas into livable environments.
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Durable & Resistant – Waterproof, salt-inhibiting, and root-resistant for long-lasting performance.
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Minimal Structural Impact – Installed with little or no damage to existing structures.
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Temperature Tolerant – Suitable for both low and high-temperature environments.
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Certified & Approved – BBA Certified (CM20 BBA 18 5595) for guaranteed quality and reliability.
Available Sizes & Coverage:
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2m x 20m Roll – Covers 40m²
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2m x 10m Roll – Covers 20m² (weighs only 20kg for easier handling)
Typical Applications:
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Radon barrier approved installations
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Walls, floors, vaults, and tunnels requiring cavity drainage
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Above and below-ground waterproofing solutions
Ensure long-term waterproofing protection with the Clever Shield CM20 Cavity Drain Membrane. Order now for high-performance moisture control!
BBA
CM20 BBA
BBA Certification Clever Shield CM20 Cavity Drain Membrane 18 5595
Performance
Declaration Of Performance CM20 Cavity Drain Membrane WPDOP05 2019 08
TDS
CM20 CDM Data Sheet
