• Over 6000 productsOver 6000 products
  • Next Day Delivery on orders confirmed before 2pmNext Day Delivery on orders confirmed before 2pm
  • 8 depots for national coverage8 depots for national coverage
Product Information
Technical Datasheet
Safety Datasheet

Description :

The CM20 Cavity Drain Membrane is a 20mm studded membrane, suitable for Type C waterproofing and delivering a grade 3 environment to BS8102:2009 and NHBC Chapter 5.4. CM20 is the highest drainage capacity membrane in the
Wykamol Waterproofing range.

Features & Benefits :

• Part of a type C cavity drain membrane system in line with BS8102:2009.
• Gives a high water void volume of 14 litres/m².
• Quick to install - easy to roll out along floors.
• Creates a dry, habitable living space in areas previously suffering from damp or wet
• Easily cut down using a sharp blade.
• Waterproof, salt inhibiting, root and contaminate resistant.
• Little or no damage to the existing structure.
• Low and high temperature tolerance.
• High grade material.
• Available in rolls of 2m x 20m and 2m x 10m* (*only 20 kg in weight)