Fiberock® Brand Tile Backerboard panels are a unique, fiber-reinforced gypsum product that includes a water-resistant core for supreme durability and superior performance in wet and dry environments alike. Easy to cut and install, these panels are ideal for use under tile, vinyl, or paint. Unlike traditional water-resistant gypsum board, Fiberock® Brand Tile Backerboard is made of a uniquely uniform composition, which creates a strong, mold-resistant product that holds tough when wet. These panels have no paper face to delaminate, tear or scratch, ensuring the product maintains its integrity.