Drainage composites are used in conjunction with waterproofing membranes to provide protection and drainage. They consist of a polystyrene core covered with a filter fabric. The fabric allows water to filter through while keeping the soil out. Drainage composites reduce hydrostatic pressure and promote positive drainage. Drainage composites are available in numerous thicknesses and strengths as well as horizontal and vertical grades.

Drainage composites may be applied on horizontal or vertical structures including, but not limited to, the following:

  • Roof decks
  • Plaza decks
  • Split slab applications
  • Vertical foundation walls
  • Tunnels
  • Planters
  • Lagged foundations walls
  • Retaining walls

Below is a list of the major manufacturers AAA Waterproofing Front Range uses for drainage composites in Denver Colorado, surrounding locations, and neighboring states:

Manufacturer and Product Name

Tremco Commerical Sealants and Waterproofing

  • TREMDrain composite series

W.R. Grace

  • Hydroduct composite series


  • CCW – MiraDRAIN composite series

JDR Enterprises

  • J-Drain composite series

Cosella Dorken

  • DELTA-DRAIN composite series

Please refer to the individual manufacturers websites for current product data sheets.

Contact AAA today to learn more about drainage composites in Colorado and the Rocky Mountain Region.