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ATTIC INSULATION SHIELD
(Models JSC/SPR, Ultra-Temp & CF)
The Attic Insulation Shield will allow a depth if insulation of
10 inches plus the depth of the ceiling joist. The opening
must be fully framed on all 4 sides at 2 inches clearance to
combustibles. The square base is placed on top of the
framed opening and the tabs are inserted within the opening.
Nail the base to the framing with at least 1 nail at each corner.
If the chimney withing the attic space will be enclosed, a
Rafter Radiation Shield must be installed at the roof level and
a Firestop Joist Shield at the ceiling level. DO NOT CUT the
upper portion.
FIRESTOP JOIST SHIELD INSTALLATION
(SuperVent Model SC, & SPR)
The Firestop Joist Shield must be installed whenever the
chimney passes through a floor or ceiling from one living
space to another living space. The Firestop Joist Shield has
been tested and approved to be installed from either above
or below the joist. See figure 11.
If installing the Firestop Joist Shield from below the joist,
ensure that there is no insulation or other combustibles within
the 50mm(2") air space around the chimney. This includes
the air spaces between the Firestop Joist Shield and the joist.
E N C L O S U R E
L I V I N G
S P A C E
L I V I N G
S P A C E
E N C L O S U R E
FIRESTOP INSTALLED ABOVE THE JOIST
FIGURE 15
FIRESTOP JOIST
SHIELD
FRAMING
JOIST
(ALL FOUR
S I D E S )
C H I M N E Y
L E N G T H
FIGURE 16a
E N C L O S U R E
LIVING SPACE
LIVING SPACE
E N C L O S U R E
FIRESTOP INSTALLED BELOW THE JOIST
FIRESTOP JOIST SHIELD INSTALLATION
(Selkirk Model Ultra-Temp)
All joist areas must be fully framed to accept a Firestop Joist
Shield. The Firestop Joist Shield must be used at all joist
levels except an open attic level. Use 1-1/2" nails to attach
it to the joists. The shield may be trimmed but must remain
25mm (1") below the ceiling.
CF JOIST SHIELD INSTALLATION
(Selkirk Model CF)
The CF Joist Shield must be used at all joist levels except
an open attic level. It is installed from below using 1-1/2"
nails. It cannot be cut down.
JOIST SHIELD
(MODEL CF)
ATTIC INSULATION SHIELD INSTALLATION
(SuperVent Models SC, SPR, SC-1, UT, ALT and CF)
An Attic Insulation Shield must be installed where the
chimney passes from the lower living space to an upper
enclosed attic space. It is designed to keep insulating
materials away from the chimney and will protect up to
250mm(10") thickness of insulation. In Canada the Attic
Insulation Shield is installed along with the firestop as shown
in Figure 18a. In the United States the Attic Insulation Shield
is installed as shown in Figure 18b.
11
F I R E S T O P
R A D I A T I O N
S H I E L D
FRAMING
JOIST
(ALL FOUR
S I D E S )
C H I M N E Y
L E N G T H
FIGURE 16b
FIGURE 17
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