12
3.3.4.b Combustible Mantel/Side Wall – Top view
A
A
Fireplace Opening
A
Min. 150 (6")
between edge
of opening
and wall
25 (1")
50 (2")
75 (3")
100 (4")
Fireplace Opening
Face of
Finished
Wall
Area denotes
allowable location
for combustible
mantel
Detail A
Wall
Cement Board
Minimum
Thickness 12mm
50 (2")
75 (3")
100 (4")
125 (5")
