Wallbarn Protecto-Drain 20m Cavity Drain Membrane - 1000mm

The Wallbarn Protecto-Drain 8 Cavity Drain Membrane protects foundations, basements, and subterranean structures. This dimpled HDPE membrane, known as a Cavity Drain or Fin Drain, shields against mechanical damage and creates an essential air gap between waterproofing and earth. Its design prevents hydrostatic pressure buildup, ensuring a dry, robust foundation. Lightweight and easy to install, it's a cost-effective solution for various applications, including retaining walls, erosion control, road construction, and basement waterproofing. Ideal for protecting structures, it features a dimpled surface for superior damage protection and maintains structural integrity.. Wallbarn Protecto-Drain 20m Cavity Drain Membrane - 1000mm