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IMPORTANT!
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Floor
Non-combustible
Framing Material
Non-combustible
Finishing Material
Protective Metal
Hearth Strips
1 in. Micore or
equivalent insulation
& 1/2 in. Durock
Bottom of
fireplace opening
Note:
The bottom of the fireplace
opening is 3-3/4 in. (95.3mm)
above the bottom of the fireplace.
Finished hearth must NOT extend
above this level.
Platform must be built
to raise the bottom of
the fireplace opening
to the level of the
desired hearth height.
20 in. Min.
Hearth Extension
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Non-combustible
Framing Material
1 in. Micore or
equivalent insulation
& 1/2 in. Durock
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Non-combustible
Finishing Materials
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* 2 in. (51 mm)
Continuous,
non-combustible sealant
Tile, stone or other
non-combustible material
Floor constructed of wood or
other combustible material
1 in. Micore or
equivalent insulation
(see Table)
Fireplace
Protective
Metal Hearth
Strip
Durock
*
*
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