The Wykamol CM3 Cavity Drain Mesh Membrane is a high-density polyethylene (HDPE) waterproofing solution designed for Type C cavity drain systems. With a 3mm stud profile, it creates a ventilated cavity between the structure and the internal finish, allowing moisture to drain effectively and preventing damp ingress. It is ideal for basement waterproofing, structural waterproofing, and damp-proofing applications, providing a Grade 3 environment as per BS 8102:2009 and NHBC Chapter 5.4 standards.
Key Benefits
✔ Compliant with BS 8102:2009 – Approved for Type C waterproofing in below-ground structures. ✔ Fast Installation – Minimal substrate preparation reduces time and labor costs. ✔ Flexible & Versatile – Easily adaptable to complex shapes like windows, doors, and pipes. ✔ No Drying Time – Allows for immediate finishing, reducing project timelines. ✔ Durable & Resistant – Waterproof, salt-inhibiting, and resistant to root penetration and contaminants. ✔ Space-Efficient – Thin 3mm stud profile minimizes internal space loss. ✔ Multiple Finishing Options – Compatible with direct plastering and dot & dab plasterboard applications. ✔ Suitable for Various Applications – Ideal for basements, cellars, and retaining walls.
Technical Specifications
Material: High-density polyethylene (HDPE)
Thickness: 3mm
Weight: Varies by size (see table below)
Sizes Available:
1m x 10m (6kg, covers 10m²)
1m x 20m (11kg, covers 20m²)
1.2m x 20m (12kg, covers 24m²)
2m x 20m (21kg, covers 40m²)
Storage: Store upright, in a covered area away from extreme temperatures and open flames.
Life Expectancy: Designed to last the lifetime of the structure when installed correctly.
Applications
CM3 Mesh Membrane is engineered for Type C cavity drain waterproofing in:
Basements & Cellars – Ideal for new and existing underground spaces.
Structural Walls – Protects concrete, brick, and block walls from dampness.
Retaining Walls – Creates a dry and habitable environment.
Tunnels & Subways – Ensures long-term waterproofing in underground structures.
Listed & Historic Buildings – Provides protection without damaging original structures.
Installation & Application
Recommended Installation Methods:
Minimal Substrate Preparation – Can be applied directly to walls and floors.
Cut to Fit – Easily trimmed with a sharp blade for custom installations.
Fixing – Installed using CM3 Mesh Membrane Fixing Plugs and Waterproofing Tape.
Finishing – Suitable for direct plastering or dot & dab plasterboard installation.
Certifications & Approvals
BS 8102:2009 Compliant – Approved for Type C cavity drain membrane systems.
BBA Certified – Assessed for long-term durability and effectiveness.
NHBC Chapter 5.4 Compliant – Recognised by UK building regulations.
Why Choose CM3 Cavity Drain Mesh Membrane?
CM3 Mesh Membrane offers a proven, reliable, and cost-effective solution for below-ground waterproofing. Whether you are a contractor, architect, or homeowner, this membrane ensures superior damp-proofing while allowing for flexible finishing options.
For more information or bulk pricing, call us now at 01268 472358.
