Finnfoam FF-PIR SAUNA insulation board is a quality tongue and groove polyurethane insulation board for use around the walls and ceiling of the sauna. Expertly made in Finland, the mould-proof, vapour-proof and aluminium foil laminated surfaced panels can withstand temperatures of up to +200 °C meaning that they are ideal for use in saunas. Their 600 x 1200 mm size also makes them easy to install in small spaces and the board is suitable for use as additional heat insulation inside dry rooms.