The Schluter-Kerdi-Board is a multi-function waterproof installation support and building panel that allows for the installation of tiled floors. Kerdi-Board is an extruded polystyrene foam board covered with a reinforcing material and non-woven felt on each side, which ensures effective anchoring in the mortar. It is available in 3/16" (5mm), 3/8" (10mm), 1/2" (12.5mm), 5/8" (16mm), 3/4"(19mm), 1"(25mm), 1 1/2" (38mm), and 2" (50mm) thicknesses. Kerdi-Board covers a wide range of applications and allows for the installation of flat, leveled, straight and dimensionally stable laying surfaces for ceramic coverings. When combined with a waterproof treatment suitable for connections between panels and junctions, Kerdi-Board can be used in bonded sealing systems. The panels can be easily cut to the desired lengths with a simple utility knife (exacto). A cutting grid is printed on one of the two surfaces of the panel to ensure fast, accurate cutting and installation. Ceramic tiles can be glued directly to Kerdi-Board panels using the thin layer method.