Thermal liner is the most popular member of the Wallrock Thermally Efficient Wallpaper range. Being 3mm in thickness it offers significant energy savings, for example 15% on typical solid brick external walls (as tested by the BBA). Thermal Liner works to save energy from the moment heating is turned on by slowing down the rate at which a cold walls soak up heat energy - and allowing the room to warm up considerably faster, in many cases more than halving warm up times, creating a comfortable room environment with less energy. This effect is valuable in any home with solid walls and even those with external or cavity insulation. Furthermore Thermal Liner has excellent capacity to cover and reinforce poor plaster and other surfaces such as plasterboard, block-work and wood paneling. Thermal Liner also helps reduce condensation problems and in many cases eliminates them - as more room warmth is retained at the wall surface at an earlier stage in the warm up phase there is far less opportunity for condensation to form. The surface of Thermal Liner is long lasting, durable and suitable for painting directly, although for a perfect finish we recommend cross lining with Wallrock Fibreliner (avoid the use of standard linings) which allows not only painting but the application of decorative wallpaper. We strongly recommend using our Wallrock Thermal Liner Adhesive for application of this durable heavy duty product.