RAUBOARD low-profile heat transfer panels are used in floors, walls and ceilings to efficiently and evenly distribute heat from REHAU RAUPEX pipe into the room. Panels are installed between the subfloor and the finished floor or between the joists and the wall/ceiling coverings. After screwing the panels to the subfloor or wall/ceiling joists, the 10.1 mm RAUPEX pipe snaps into the groove for convenient installation. A small bead of silicone is applied to the groove before installing the pipe. RAUBOARD panels are 1/2 in thick with pipe spacing of 6 in on-center.