Labels:bulletin board | hakham | poster | window OCR: Abuse and Impact The Fire Resistance Gypsum Wallboard "Regular" Core: All gypsum board affords degree natural tire resistance noncombustible core composed mainly gypsum. Type Core "eXtra fire resistance The basic components added that give Type X it superior fire resistant core are gypsum and fiber glass Type Core: Has superior fire resistance over Type lvpe core is proprietary so the enhancing ingr redients vary by manufacturer 5/8" proprietar ingredients
