Thin-R Thermal Liner Mechanically Fixed XT/TL-MF is a composite insulated panel of Xtratherm PIR insulation core with a composite foil facing bonded to 12.5mm tapered edge plasterboard for internal walls, sloped roofs and ceilings. XT/TL-MF is only suitable for mechanically fixed applications. The composite foil facing on both sides of XT/TL-MF incorporates an integral vapour control layer, which helps to reduce the risk of condensation. XT/TL-MF is designed to provide high levels of thermal insulation and drylining in one operation, providing the solution of choice in newbuild and renovation.