Conventional gypsum board fire rating is several levels?
B1 level, if installed on the steel keel on the gypsum board, can be used as a Class A. I hope I can help you.
B1 level, but in accordance with the provisions of the national standard gypsum board and light steel keel can be used together when the A-level materials, Ordinary paper gypsum board detection level for the B1 level
Commonly used ceiling decoration materials are the fire level B1, of course, including paper gypsum board, fiber gypsum board, cement particle board, mineral wool decorative sound absorption board, glass wool decorative sound absorption board, perlite decorative sound absorption board, difficult Burning plywood, flame retardant medium density fiberboard, rock wool decorative panels, flame retardant wood, aluminum foil composite materials, flame retardant phenolic plywood, aluminum foil glass fiber reinforced plastic composite materials. The fire gypsum board fire rating can generally reach A level. Of course, many of the quality of the building materials market, but off the poor quality of the ceiling gypsum board fire rating of less than B1 level. Paper gypsum board is a flame retardant B1 grade products, in the "national standard building interior design fire safety norms" (GB) also has text description: installed in the light steel keel on the gypsum board, can be used as A grade decoration materials use. In accordance with the national fire safety norms on the wall, ceiling and other components of the fire requirements, it is not simply that the gypsum board is able to meet some of the fire resistance requirements, which is a more systematic concept.
Refractory plaster board B1 level, ordinary paper gypsum board is no fire rating.
