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D. Finishing Material
Refer to Sections 12.A. and Sections 12.B. for combustible/
non-combustible materials. Refer to Figure 12.10 for non-
combustible zone.
WARNING! Risk of Fire! You must maintain clearances.
•
Use only non-combustible framing material below
standoffs.
•
Sheetrock, wood or other combustibles must NOT be used
as sheathing or facing in the non-combustible zone.
• Do not cover metal fireplace front with combustible
materials.
•
Install combustible materials only to specified clearances
on top front and side edges.
• Complete framing and apply facing material (drywall) over
framing.
• A bead of 300-deg F minimum non-combustible sealant
must be used to close off any gaps at the top and sides
between the fireplace and facing to prevent cold air
leaks.
• Large gaps can be bridged with fiberglass rope gasket.
• Only non-combustible materials may be used to cover the
metal fireplace front.
Non-Combustible material
Non-combustible
decorative facing
(up to full brick depth)
Continuous,
non-combustible sealant
Tile, stone or other
non-combustible material
1 in. Micore
or equivilent
insulation &
1/2 in. Durock
Figure 12.10 Decorative Facing
44
Finished combustible wall
Metal strips are placed 2 in. (51 mm)
under the front of the fireplace and must
extend beyond the front and sides of
fireplace opening by 2 in. (51 mm)
Heatilator • Birmingham BIR42 • 4059-308 Rev J • 1/11
These surfaces
must be covered
with non-combustible
material.
Figure 12.9 Non-combustible Facing
Note: We recommend mortar be applied after
facing materials are installed. Refer to Sec-
tion 11.F.
2 x 4 stud wall
2 x 4 header, flush with
front of stand-offs
Bottom of fireplace opening
and finished hearth may be
Hearth
the same height
Refractory
Floor constructed of wood or
other combustible material
Non-combustible
sealant.
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