Cavity Drain R7 is manufactured from 0.5mm translucent high density polyethylene with studs approximately 7mm high.

Subject to normal conditions of use Cavity Drain R7 will provide an effective barrier to the transmission of water and water vapour for the life of the structure.

  • Easy to install
  • High drainage capacity
  • High factor of safety
  • High compressive strength
  • Chemically resistant
  • Can be applied to wet substrates