EI 60 stand alone lining, 80 mm thick, composed by 2 x 15 mm thick PregyFlam BA15, fixed to galvanized steel frame made of 40-50-40 mm horizontal U tracks and 47-49-50 mm vertical C studs. Glass wool in the cavity. According to fire test report, fire from both side is allowed and maximum height is 4,00 m. In case of lack of horizontal joints between boards, glass wool insulation can be removed.