Knauf AQUAPANEL® Cement Board Indoor is a tough impact-resistant glass-fibre-reinforced cement tile backer for use in wet and humid areas. At 11kg/m2 the new board is 25% lighter making the installation easier and faster than before. A bending radius of 1m can be achieved without the need to cut the board into strips. AQUAPANEL® is also ideal when it comes to withstanding high temperatures making it ideal for use near log burning stoves that require surrounding walls that can withstand high temperature and are non-combustible. AQUAPANEL® Indoor is the ideal substrate for non-flammable and heat resistant surface coatings and finishes as it will not warp shrink or expand.