The tile backer insulation board 6mm delivers thermal efficiency and structural performance engineered for 150w cable heating system installations. This 5-pack solution reduces heat loss and running costs by up to 25%, maximising energy retention in wet rooms, bathrooms and heated floor applications. The ultra-lightweight construction allows simple cutting to size using a craft knife, while moisture-resistant properties reduce subfloor movement for reliable tiling adhesion. The board can be mechanically fixed to timber subfloors using screws and washers, or bonded to solid subfloors with flexible tile adhesive. Suitable for both wall and floor applications, each board provides excellent sound insulation alongside thermal protection. Flexible tile adhesive is required for all installations, with mechanical fixing at 300mm intervals specified for wooden subfloor applications. Features & benefits: reduces heat loss and running costs by up to 25% when used with 150w cable heating systems. Ultra-lightweight moisture-resistant construction for simple cutting and installation. Minimises subfloor movement, providing stable surface preparation for tiling. Excellent sound insulation properties for enhanced acoustic performance. Suitable for wet rooms, bathrooms and as plasterboard replacement in moisture-prone environments. Compatible with wall and floor installations when correct fixing methods are followed. Pack of 5 boards. Dimensions: 1200 x 600 x 6mm l x w x h .