Special Performance board (SP), with a density of 1500 kg/m3 (95lb/ft3), is a lining board specially developed for use in potentially damp or humid areas. Made from a mixture of cement, cellulose and mineral fillers, it is ideal for applications requiring a board with low moisture movement and good rot resistance. SP board has passed the stringent U.S. Ceramic Tile Institute’s test for tiling.

The SP board is especially treated against mould in the wet rooms. In order to eliminate the defect-prone work stages in wet rooms, the SP board is treated on both sides with water barrier already in the factory. The mechanically spread water barrier and constant quality control ensure the homogeneous surfaces of the boards.