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118116-01D
8
VENTING INSTALLATION
Continued
Figure 9 - Elbow Offset
B
A
Screws
FIRESTOP SPACERS (FS-10)
Firestop spacers are required at each point
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purpose is to establish and maintain the required
clearance between chimney and combustible
materials. When pipe passes through a framed
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must be placed onto the ceiling from below as
shown in Figure 10.
They also provide complete separation from
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required by most codes. When double wall
pipe passes through a framed opening into
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Figure 10 - Firestop Spacer with Living
Space Above Ceiling
Figure 11 - Firestop Spacer with Attic
Space Above Ceiling
Existing
Ceiling
Frame
Firestop
Spacer
Screws or
Staples
(Min. of 8)
Firestop
Spacer
Screws or Staples
(Min. of 8)
PENETRATING THE ROOF
To maintain a 2" clearance to the pipe on a
roof with a pitch, a rectangular opening must
be cut.
1. Determine center point through which pipe
will penetrate roof.
2. Determine center point of roof. Pitch is the
distance the roof drops over a given span,
usually 12". A 6/12 pitch means that the
roof drops 6" for each 12" one measure
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3. Use roof opening chart (Figure 12) to
determine the correct opening length and
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4. Remove shingles around opening mea-
sured. Cut out this section.
5. Add next sections of pipe until the end
penetrates roof line. Check to see that
proper clearances are maintained. Extend
chimney by adding sections of double wall
pipe until pipe is minimum of 30" above
highest point of roof cutout. Termination
and chimney must extend a minimum of
36" above highest point where it passes
through roof.
Pitch
Slope
Opening
$0D[
Used Flashing
Model No.
Flat
0°
19.5"
V6F-10DM
0-6/12
26.6°
V6F-10DM
6/12-
12/12
45.0°
27"
V12F-10DM
Existing
Ceiling
Frame
19.5" Min.
30" Min.
2" Min.
2" Min.
2" Min.
Opening "A"
Figure 12 - Roof Opening Measurements
