FINNFOAM FF-PIR GYL Insulation polyurethane sheets

Thanks to its excellent thermal insulation capacity, the amount of FF-PIR needed is only about one-half of the amount that would be needed for, say, mineral wool. Installed on a stone wall, FF-PIR allows more than 10 cm additional space in the sauna room. The aluminium paper surface of the insulation boards reflects back some of the heat radiation, thus improving the overall heat insulation capacity of the structure.