Kooltherm K17 is a premium performance insulated plasterboard for mechanically fixed and adhesively bonded insulated drylining. It allows for thin wall constructions with an insulation component that delivers a thermal conductivity of as low as 0.021 W/mK. Providing insulation, drylining and vapour control in one board, it can be used with solid stonework and brickwork, with or without an existing lining.