Masonry Magazine April 1975 Page. 19
8
8-IN. SOLID BRICK WALL
Non-combustible or no members framed in. Units at least 75 percent solid. No plaster required.
References 1 and 7
8
8-IN. HOLLOW BRICK WALL
Non-combustible or no members framed in. Units at least 71 percent solid. Plaster 2 sides (½-in. plaster).
References 1 and 7
Units at least 60 percent solid. Cells filled with perlite loose fill insulation. No plaster required.
Reference 11
10
10-IN. BRICK CAVITY WALL
Non-combustible or no members framed in. Units at least 75 percent solid. No plaster required.
References 1, 7 and 9
12
12-IN. SOLID BRICK WALL
Combustible members framed in. Units at least 75 percent solid. No plaster required.
References 1 and 7
FIG. 7 Four-Hour Fire Ratings
Constructions shown are loadbearing.