Figure 16
Figure 17
Insulated Chase Construction
7 Ft.
Min.
Attic
Radiation
Shield
Roof Support
Storm
Collar
Flashing
Drywall or
Any Rigid
Material
2” x 4”
1/2” Plywood
6’ 8”
Min.
Firestop
* Floor
Ceiling
Wall
* Floor
Ceiling
Wall
Fireplace
Insulate Joists
Same As Ceiling
Draft Stops
Firestop
CTDT
Termination
Note: Non-
Combustible
Chase
Flashing
Must Be
Used To
Cover
Chase
Opening
Optional
Insulation
In Outside
Walls Of
Chase
Solid
Continuous
Surface
Outside
Base
Insulation
(Thermal Barrier)
8'
Level
NOTE: It is recommended that
the chase walls and floor be
insulated in the same manner,
using the same insulation, as
the rest of the building, below
the attic.
• Must have the same firestopping
resistance as adjacent wall.
• Must have the same insulation as
adjacent ceiling.
• Follow local rules regarding fram-
ing construction.
1
3
4
5
6
2
1
2
7
3
4
1. Fireplace
2. Front of fireplace
3. Wood frame (2” x 3” min)
4. Drywall
5. Tiles
6. Rock board or other
7. Brick
Fireplace Frame Section
(Top View)
Figure 18
SEE NOTE
MANTEL and FACING
The mantel must be installed at least 56” (1143
mm) above the base of the fireplace
(
Figure 19
)
.
Nailing Flanges
Four nailing flanges are provided to secure the
fireplace to the floor
(see
Figure 27
).
Bend
the nailing flanges down so that each flange is
flush with the floor, then using nails or screws,
secure the fireplace to the floor (2 places each
side). The heads of the screws or nails must
be large enough to completely cover the holes
in the nailing flanges.
Nailing Flange
(2 places each side)
Unbend to floor
and nail/screw
Fireplace Side
7 Ft.
Min.
Attic
Radiation
Shield
Roof Support
Storm
Collar
Flashing
Drywall or
Any Rigid
Material
2” x 4”
1/2” Plywood
6’ 8”
Min.
Firestop
* Floor
Ceiling
Wall
* Floor
Ceiling
Wall
Fireplace
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
16
