HARDIWALL

fire rated stud wall system, namely, a stud wall enclosed either (1) on both sides with fire-rated gypsum board or (2) enclosed on one side with fire-rated gypsum board and enclosed on the other side with fiber-cement panels or (3) enclosed on one side with fire-rated gypsum board and enclosed on the other side with fire-rated gypsum board and fiber-cement panels or planks