XPS board with grooves is an efficent thermal insualtion material in under floor heating system.
The hot pipes can be installed into the grooves, If the XPS baord is covered by aluminum foil or aluminum pannel, the energy could be spreaded efficently and evenly.
The size of the board and the distances between two grooves can be suit to requirements.
normal size: 1200*600*20mm,
grooves:100mm+groove+200mm+groove+200mm+groove+100mm
It also be produced accordingly