Nailing Flanges; Facing And Mantel - Superior WCT6820WS Installation And Operation Instructions Manual

INSULATED CHASE CONSTRUCTION
NOTE: It is recommended that the
chase walls and fl oor be insulated
in the same manner, using the
same insulation, as the rest of the
building, below the attic.
Figure 9

Nailing Flanges

Four nailing fl anges are provided to secure the
fi replace to the fl oor (see fi gure below). Bend
the nailing fl anges down so that each fl ange is
fl ush with the fl oor, then using nails or screws,
secure the fi replace to the fl oor (2 places each
side). The heads of the screws or nails must
be large enough to completely cover the holes
in the nailing fl anges.
Fireplace Side
Nailing Flange
(2 places each side)
Mantel and Facing
The mantel must be installed at least 42"
(1067 mm) above the base of the fi replace
(Figure 11).
10
Roof Support
Attic Radiation
Shield
Firestop
6' 8"
(2 m)
Min.
7'
(2.1 m)
Min.
1/2" Plywood
Unbend to fl oor
and nail/screw
1. Fireplace
2. Front of fi replace
3. Wood frame (2" x 3" min)
4. Drywall
5. Tiles
6. Rock board or other
7. Brick
Figure 10
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Storm Collar
Flashing
Drywall or Any Rigid
Material
2" x 4"
Fireplace Frame Section
(Top View)
3
1
5
2
6
3
1
7
2
Floor
Ceiling
Wall
• Must have the same firestopping
resistance as adjacent wall.
• Must have the same insulation as
adjacent ceiling.
• Follow local rules regarding framing
construction.
8'
8'
(2.4 m)
Level
Level
Insulation
(Thermal Barrier)
Mantel and Facing
(Side View)
Mantel
42" (1067mm)
4
Rock Board
or Other
Noncombustible
Facing
4
Drywall
Rock Board
or Other
Noncombustible
Facing
Figure 11
Optional
Insulation
In Outside
SEE NOTE
Walls Of
Chase
Solid
Continuous
Surface
Outside
Base
Drywall
2 x 3 Min.
(51mm x 76mm)
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