Figure 9

Insulated Chase Construction

1. Combustible material must be installed flush
with the fireplace. It may not project in front
of and on the fireplace (i.e. the steel facade
of the fireplace) (Figure 12).
2. Non-combustible materials such as brick,
stone or ceramic tile may project in front of
and onto the fireplace facing (Figure 13).

Mantel and Facing

The mantel must be installed at least 42”
(1067 mm) above the base of the fireplace
(Figure 11).
Figure 11

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.
Note: Floor and wall below the attic must be
insulated using the same insulation.
Attic Radiation
Shield
Roof Support Storm Collar
Flashing
Drywall or Any Rigid
Material
2” x 4”
FIREPLACE
1/2” Plywood
Firestop
IMPORTANT
The facade must be removable once installed. The facade is designed to overlap any facing material installed on the front of the fireplace. If thicker material is installed, use the facade as a template and make sure it can be easily removed for servicing.

Facing

13
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 10
Mantel
Rock Board
or Other
Noncombustible
Facing
Drywall
Spacer

Mantel and Facing

(Side View)

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
7’
(2.1 m)
Min.
6’ 8”
(2 m)
Min.
8’
(2.4 m)
Level
42” (1067mm)
2” X 3” Min.
(51mm x 76mm)
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Rock Board
or Other
Noncombustible
Facing
Drywall
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE. 9