Building Fire Rating
Fire Rating according to FM
2 hour fire rated wall construction built with 1 hour fire rated roof construction, 1.5 hour fire rated door construction, and 1 layer of 3⁄4” gypsum ultracode wallboard. Air inlet vents with UL Listed and labeled fire damper with louvers. Dampers have a galvanized steel frame, curtain-type galvanized steel blades and a UL Listed 165o F fusible link.
4 hour fire rated wall construction built with 3 hour fire rated roof construction, 3 hour fire rated door construction, and 2 layers of 3⁄4” gypsum ultracode wallboard. Air inlet vents with UL Listed and labeled fire damper with louvers. Dampers have a galvanized steel frame, curtain-type galvanized steel blades and a UL Listed 165 degree F fusible link.
2 hour fire rated wall construction built with 1 hour fire rated roof construction, 1.5 hour fire rated door construction, and 1 layer of 3⁄4” gypsum ultracode wallboard. Air inlet vents with UL Listed and labeled fire damper with louvers. Dampers have a galvanized steel frame, curtain-type galvanized steel blades and a UL Listed 165o F fusible link.
4 hour fire rated wall construction built with 3 hour fire rated roof construction, 3 hour fire rated door construction, and 2 layers of 3⁄4” gypsum ultracode wallboard. Air inlet vents with UL Listed and labeled fire damper with louvers. Dampers have a galvanized steel frame, curtain-type galvanized steel blades and a UL Listed 165 degree F fusible link.