ProDrain® Cuspated Sheet Drains are cost effective dimpled plastic sheet that provides effective drainage and protects the waterproofing membrane. This sheet also acts as a thermal insulation barrier adjacent to the waterproofing, making the product ideal for use in landscaping applications, basement walls, tunnel linings, landfills and road drainage. The integrated non-woven geotextile covering and attached to the polymer core prevents soil particles migrating into the core and blocking the drainage sheet. Wide and easy to handle roll size makes the product quick and low cost installation. Prodrain Brochure