Thermopanel Tile Backer Insulation Boards are lightweight and easy to handle whilst providing superior waterproofing to your wet area. Available in a variety of sizes, they are incredibly versatile. Thermopanel Tile Backer boards are specifically designed for two primary purposes: As a first class heat insulation for underfloor heating systems and as a superior waterproof surface to fix wall or floor tiles. Each Tile Backer Board Measures: 1250 x 600 (LxWxD) Thermopanel Tile Backer Boards are ideal for use with Electric Underfloor Heating, as they are lightweight and easy to handle whilst providing superior waterproofing to your wet area. Tile Backer Boards are easy to install and are particularly suited to underfloor heating mats and under tile heating cable applications. Their lightweight and durable design mean Thermopanel Tile Backer Boards will accept even the heaviest wall tiles, unlike plasterboard (correct installation method must be followed!) With a thermal conductivity value of 0.027W/mK, Thermopanel Tile Backer Boards are perfect for use as a thermal barrier with underfloor heating, and are dimensionally stable (unlike plywood).