The Wykamol range of cavity drain membranes are high quality waterproof basement tanking materials giving a wide choice of stud height (drainage capacity) and plaster finish (dry lining or wet plaster). For use on walls, floors, vaults and tunnels with minimal surface preparation required. Also suitable for external foundation waterproofing and to provide insulated dry lining for walls above ground level which may not be suitable for conventional plaster finishes.

Wykamol CM membranes are manufactured from high quality (‘virgin') polymers - polyethylene (CM20, CM8, CM Plaster) and polypropylene (CM Floor) - all giving extremely low vapour permeability and high resistance to salts etc. Studs are formed in a regular pattern on one side to provide a range of drainage capacity options (see product specifications below). All CM membranes carry a BBA certificate.