Installation Manuel

Majestic Sovereign Series • SA36/SA42C • Installers Manual • 4010-262 • Rev E • 07/19/16
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Floor
Noncombustible
Framing Material
Noncombustible
Finishing Material
Protective Metal
Hearth Strips
1/2 in. Micore
or equivalent
insulation
16 in. (SA36)
20 in. (SA42) Min.
Hearth Extension
Note: Maximum height from floor
under fireplace to top of finished
hearth extension is 2 in. (51 mm).
Figure 7.5 Hearth Extension Detail
2 in. (51 mm)
required
Floor constructed of wood or
other combustible material
Protective
Metal Hearth
Strip
1/2 in. Micore
or equivalent
insulation
Continuous,
non-combustible sealant
Tile, stone or other
non-combustible material
Note: Maximum height from floor under fireplace
to top of finished hearth extension is 2 in. (51 mm).
Bottom of fireplace opening
Figure 7.4 Hearth Extension Construction
1. Fireplace Installed Flush on the Floor and
Hearth Extension Raised to Bottom of Firebox
Opening
Non-combustible ooring a minimum of 16 in. (406 mm)
in front of and 8 in. (203 mm) to each side of replace
opening of the SA36R. 20 in. (508 mm) in front and 12
in. (305 mm) to each side of the SA42R is required.
The hearth framing must be constructed of non-com-
bustible materials (such as metal framing or equivalent
material) and placed on HX3(s), HX4(s), or equivalent
material. See Figures 7.4 and 7.5.
When creating the platform, allow for the thickness
of the non-combustible nishing materials.
Seal gaps between the hearth extension and the front
of the replace with a bead of non-combustible sealant
or grout.