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1
1
Figure
4.1
-
Installation of facing materials ( Case #1)
IE: DUROCK, CEMENT BOARD, GRANITE,
MARBLE, STONE
OF NON-COMBUSTIBLE
MATERIAL
OPTION 1
NON COMBUSTIBLE MATERIAL
min 4
9"
NON COMBUSTIBLE MATERIAL
minimum 49" wide X 30" high
FACING WITH ONE LAYER
THREE WAYS TO ALLOW AIR FLOW
TO FRONT AIR VENT
LEAVE MINIMUM 1/2" X 26" SLOT
CLEAR FOR THE LOUVER AREA
min 30"
18
"
36.5
"