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FIREPLACE AND HEARTH EXTENSION
ON
COMBUSTIBLE F LDOR
O P n O H U NOM-COMBUS
DECORATIVE CWERIAG
COUBVSTlSLE
FLOOR
COVERIHC
METAL SAFETY
H U R M EXTEHSIOH
Fl G U RE
38
OR EOUIVALEUT
If a raised headh
is constructed, the hearth must be buitt
out of completely noncombustible materials. The height
of the raised hearth cannot extend above the bottom
edge of the fireplace opening.
1
Lrrrau
H u m D m w s l O W
-SAFEr?
FIGURE
39
OR EaUlVMENT
Sf"P-OFFSET
-
WARNING:
HEARTH EXTENSION IS TO BE INSTALLED ONLY
AS ILLUSTRATED. FIGURES 35 THRU 39 SHOW OP-
TIONAL INSTALLATIONS.
MANTLES
1
i
FINISHED
WALL
COMBUSTIBLE
-
FALSE HEADER
NON-COMBUSTIBLE
_/
DECORATIVE FACING
(DO NOT OVERLAP
/
SEAL
AMY GAP WITH
THE
OPENING)
STEEL
NON-COMBUSTIBLE
LlKTEL
MATERIAL
I
FIGURE 40-NON
COMBUSTIBLE
FACING
)
Combustible mantles may be safely installed provided
they do not project beyond safety zone as illustrated in
Figure 40.
NOTE: Use an
"L"
shaped piece of metal (lintel) across
the top of the fireplace opening when
a
non-combustible
material is used on the face of the fireplace. It can be
attached to the face of the fireplace with screws (see
Figure 40).
MANTLE
SURROUNDS
Often a decorative surround or verlical
rtion
of
the
P"
mantle
is
desired. If this is constructed o any wmbus-
tible material it must be within the safe zone indicated in
Figure 40.
BLACK PORTION
O F
FRAME
NOT T O BE COVERED W I M
COMBUSTlBLE MATERIALS
r
v
EXAMPLE OF
COMBUSnBLE MANTLE
WITHIN
SAFElY
ZONE
FIGURE
41-
-
If the
fireplace design
incorporates a mantle with side
legs, book shelves, wood bins, closets, etc., Ihese
should not project beyond the safety zone shown in
figure 41.
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