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1
1
min
61
"
min 26"
NON COMBUSTIBLE MATERIAL
minimum 61" wide X 26 " high
LEAVE MINIMUM 1/2" X 26" SLOT
CLEAR FOR THE LOUVER AREA
ON BOTH FACES
Figure
4
.1
-
Installation of facing materials ( Case #1)
IE: DUROCK, CEMENT BOARD, GRANITE,
MARBLE, STONE
OF NON-COMBUSTIBLE
MATERIAL
OPTION 1
FACING WITH ONE LAYER
THREE WAYS TO ALLOW AIR FLOW
TO FRONT AIR VENT