Description
What is Wykamol CM8 Geotextile Membrane?
Wykamol CM8 Geotextile Membrane is a heavy-duty cavity drainage membrane that provides superior protection against water ingress. It is designed for use on retaining walls, earth-covered structures, and external basement waterproofing systems.
Key Features & Benefits
✔ High-Strength Protection – Made from HDPE (High-Density Polyethylene), offering excellent durability and resistance to impact.
✔ Advanced Drainage System – The 8mm stud profile effectively channels water away from structures, preventing hydrostatic pressure buildup.
✔ Geotextile Layer – The integrated non-woven geotextile filter prevents soil particles from clogging the drainage system while allowing water to pass through.
✔ External Waterproofing Compatibility – Ideal for use with Wykamol HydroTank 1K or 2K coatings and other external waterproofing solutions.
✔ Flexible & Easy to Install – Lightweight, easy to cut, and conforms to irregular surfaces for seamless installation.
✔ Suitable for Various Applications – Perfect for retaining walls, basement walls, green roofs, podium decks, and other below-ground structures.
Application Process
Step 1: Surface Preparation
- Ensure the surface is clean, dry, and free of debris.
- If applying over a waterproofed surface, ensure the Wykamol HydroTank system or similar coating is fully cured.
Step 2: Membrane Installation
- Roll out the CM8 Geotextile Membrane against the external wall or structure.
- The geotextile side should face outward to allow water filtration while preventing soil ingress.
- Cut the membrane to fit around any penetrations or obstacles.
Step 3: Fixing the Membrane
- Secure the membrane using Wykamol Brick Plugs or other mechanical fixings, spacing them approximately 500mm apart.
- Ensure overlaps of at least 100mm between membrane sheets to maintain an effective drainage system.
Step 4: Drainage System Integration
- Install a perimeter drainage system, such as a land drain or Wykamol Drainage Channel, at the base of the wall to direct water away from the structure.
- Ensure the drainage system leads to a suitable discharge point, sump, or soakaway.
Step 5: Backfilling
- Carefully backfill with clean, coarse gravel or a free-draining material to enhance water movement.
- Avoid sharp objects or large stones that could damage the membrane.
Coverage & Specifications
📌 Roll Size – 2.0m x 20m (40m² coverage per roll)
⚙️ Material – HDPE with a non-woven geotextile layer
⏳ Installation Time – Quick and efficient; can be installed in a single day for most applications
Next-Day Delivery Across the UK
Clever Shield offers fast, next-day delivery for Wykamol CM8 Geotextile Membrane throughout the UK, ensuring that your waterproofing projects stay on track.
💧 Protect your structures from water ingress with Wykamol CM8 Geotextile Membrane – Order today from Clever Shield!
Uses
• CM20 Geotextile is an ideal Radon Barrier.
• Excellent flow rate.
• UV Stabilised.
• Suitable for use with all construction types.
• Drains off the water before reaching the waterproof coating.
• Combined drainage and protection board.
• Easy handling and rapid installation.
• Rugged, durable construction with thermal insulation benefits.
• Filtration layers prevent silting-up.
• High compressive strength and drainage capacity.
• Allows back-filling with excavated earth.
• With stands stress and movement in the background.
Product Details
Product Description | CM8 Geotextile Membrane, Black | CM20 Geotextile Membrane, Black |
Product Code | CM8GEOTEXT | CM20GEOTEXT |
Packaging and Size | 2 m x 20 m, 24.4 Kg | 2 m x 20 m, 40 Kg |
Coverage | 40 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 |
Downloads
- CM8-GEOTEXTILE-BWM06-TDS8.pdf
- CM20-GEOTEXTILE-CDM-BWM07-TDS7.pdf
- CM8-Geotextile-BBA-Cert-2022-05.pdf
- CM20-Geotextile-BBA-Cert-2022-05.pdf
- CM8GEOTEXT-DECLARATION-OF-PERFORMANCE-WPDOP073.pdf
- CM8GEOTEXT-DECLARATION-OF-CONFORMITY-WPDOC073.pdf
- CM20GEOTEXT-DECLARATION-OF-CONFORMITY-WPDOC083.pdf
- CM20GEOTEXT-DECLARATION-OF-PERFORMANCE-WPDOC083.pdf
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