Platon® is a rugged, dimpled high-density polyethylene (HDPE) membrane that keeps foundations and flooring dry. Platon creates an impermeable vapor barrier and air gap, allowing concrete to breathe while controlling moisture. It has been used on foundations since the early 1990s, with no product-related leaks. Platon keeps wet soil away from the foundation wall. Any moisture that may find its way past the membrane is carried to the foundation drain by the air gap drainage path. Platon is commonly used to waterproof block walls, poured concrete walls, permanent wood, existing foundations and Insulated Concrete Forms (ICF). Platon also isolates flooring from cold, damp concrete. When used beneath a wooden sub-floor and over concrete in a basement, it makes floors comfortable, odor free, healthy and dry.