Wykamol CM8 HD 700 Radon Barrier Membrane 2m x 20m

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Wykamol CM8 HD 700 is a high-density cavity drain membrane designed for use within Type C waterproofing systems in accordance with BS 8102. Suitable for below-ground waterproofing applications, the membrane manages water ingress by directing groundwater towards perimeter drainage channels and sump systems. Its robust construction also makes it suitable for projects requiring enhanced durability and radon protection. The transparent membrane design assists with accurate fixing placement during installation.

Key Features & Benefits

• High-density cavity drain membrane
• Designed for Type C drained protection waterproofing systems
• Suitable for structural waterproofing applications
• Helps manage groundwater ingress
• Compatible with perimeter drainage channel systems
• Suitable for radon barrier applications
• Waterproof construction
• Resistant to salts, contaminants and root ingress
• Minimal surface preparation required
• Transparent membrane for accurate fixing placement
• Easy to cut and install
• Suitable for timber batten systems
• Compatible with steel dry lining systems
• Immediate finishing after installation
• Minimal impact on existing structures
• Suitable for new-build and refurbishment projects
• Resistant to high and low temperatures
• BBA Certified

Suitable Applications

• Basement waterproofing
• Cellar waterproofing
• Damp wall waterproofing
• Damp floor waterproofing
• Type C cavity drain systems
• Radon protection systems
• Structural waterproofing projects
• New-build waterproofing
• Retrofit waterproofing installations
• Residential waterproofing projects
• Commercial waterproofing projects
• Below-ground structures

Technical Information

• Product Type: High-density cavity drain membrane
• Membrane Type: Type C drained protection membrane
• Roll Size: 2m x 20m
• Coverage: 40m²
• Waterproofing Standard: BS 8102
• Application Area:
  • Walls
  • Floors
  • Basements
  • Cellars
• Radon Barrier Suitable: Yes
• Installation Compatibility:
  • Timber battens
  • Steel dry lining systems
• Temperature Resistance: Suitable for high and low temperature conditions
• Certification: BBA Certificate 18/5595
• Declaration of Performance: CM8 HD700 Cavity Drain Membrane

Frequently Asked Questions

What is Wykamol CM8 HD 700 used for?

CM8 HD 700 is used as part of a Type C cavity drain waterproofing system to manage water ingress in basements, cellars and below-ground structures.

Is CM8 HD 700 suitable for radon protection?

Yes. The membrane is suitable for projects requiring radon barrier protection alongside waterproofing performance.

Can CM8 HD 700 be installed on walls and floors?

Yes. The membrane is suitable for waterproofing both walls and floors within below-ground waterproofing systems.

Does the membrane require extensive surface preparation?

No. The manufacturer states that minimal surface preparation is required before installation.

BBA

BBA Certification Clever Shield CM8 Cavity Drain Membrane 18 5595

Performance

Declaration Of Performance CM8 HD700 Cavity Drain Membrane WPDOP036 2019 08

Declaration Of Performance CM8 Cavity Drain Membrane WPDOP03 2019 08

TDS

CM8 CDM Data Sheet

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