• Composed of polyester needle-punched fabric, a polyethylene barrier, and an anti-slip surface layer
  • Easy installation – lay it into the freshly poured concrete footings, smooth into place with a trowel, and form the keyway with the membrane in place



  • Vacuum-formed dimpled pattern allows incidental water to flow into footing drain
  • Two lines of defense against water intrusion: dimpled membrane provides capillary break; air-gap allows incidental water to freely drain by gravity
  • Eliminates interior dampness and musty odors
  • Reliably bridges foundation cracks and deflects soil moisture, unlike asphaltic sprays
  • Continues to function even if foundation shifts or cracks
  • Resists damage from backfill, like rocks and debris
  • Installs in all types of weather


Basement Floor

  • Installed dimple side down, a ventilated air space is created above the slab, allowing equalization of water vapor pressure
  • Seams are simply taped with DELTA®-MOISTURE PROOF TAPE to ensure that moisture cannot migrate inwards through the joint areas
  • DELTA®-FL topped with plywood sheets will allow a variety of floor coverings to be installed: carpeting with underlay, vinyl flooring, hardwood flooring
  • Laminate floors can be directly laid on top of the membrane
  • Provides a reliable capillary break and vapor barrier, ensuring a dry, livable basement



  • Polypropylne drainage core allows incoming water to freely drain to the footing perimeter
  • Dimple pattern provides high compressive strength and acts as a highly effective protection layer for the waterproofing material during backfill
  • Available in 6′ and 8′ wide rolls, DELTA®-DRAIN is the largest size drainboard available on the market today, making installation quick and easy