CM8 Cavity Drain Membrane


  • Creates dry, habitable living space in areas previously suffering from damp – wet conditions.
  • Waterproof, salt inhibiting, root and contaminate resistant.
  • Quick to install – minimal preparation needed to wall surfaces.
  • Easily cut down using a sharp blade.
  • No drying out process – redecoration can occur immediately.
  • Little or no damage to the existing structure.
  • Low and high temperature tolerance.
  • Part of a type c cavity drain membrane system in line with BS8102:2009. • Clear for easy application and fixing of wykamol plugs.
CM8 Cavity Drain Membrane
CM8 Cavity Drain Membrane 218.40270.40

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CM8 Cavity Drain Membrane is an 8 mm studded membrane, suitable
for Type C waterproofing and delivering a grade 3 environment to BS8102:2009 and NHBC Chapter 5.4. CM8 is available in both 500g or 700g densities.
We recommend using the CM8 HD700 when a heavier, denser membrane is deemed necessary by the Wykamol Technical Department. Please always take advice from our Technical Experts when making product selections.

Wykamol CM8 Waterproofing Membrane is suitable for type ‘C’ (drained protection) structural concrete constructions in accordance with BS 8102.

When used for waterproofing basement floors and walls it is recommended that perimeter drainage channels are provided to optimise the flow of ground water towards the sump location.

Wykamol CM8 Waterproofing Membrane is used in a dry lining application. Various systems can be used in the head of the fixing plug, from timber battens to steel dry lining systems.

Toner Dampproofing Supplies Ltd also offer our CM8 HD700 which is an ultra high density membrane, ideal for those projects which may call for extra protection. Always take advice from our Technical Department when making product selections. They will advise you on which membrane is most suitable for your project.

Additional information

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Size: No selection

2.4M X 20M, 2M x 20M