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115603-01D10
VENTING INSTALLATION
Continued
Nail Only
Outer
Perimeter
of Flashing
Storm
Collar
Flashing
Cone
Underlap
Shingles
at Bottom
Overlap
Shingles Top
and Sides Only
Figure 24 - Flashing Installation
To maintain a 2" clearance to pipe on a roof with
a pitch, a rectangular opening must be cut.
1. Determine the 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
horizontally down from roof rafters.
3. Use roof opening chart (Figure 23) to
determine correct opening length and
ashing required.
4. Remove shingles around opening mea-
sured. Cut out this section.
5. Add next sections of pipe until 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 the roof.
Figure 25 - Storm Collar
Chimney
Pipe
Waterproof
Caulk
Storm
Collar
Flashing
Determine ashing to be used with roof open-
ing chart. Slide ashing over pipe until base is
at against roof. Replace as many shingles as
needed to cover exposed area and ashing
base. Secure in position by nailing through
shingles (see Figure 24). DO NOT NAIL
THROUGH FLASHING CONE.
Place storm collar over pipe and slide down
until it is snug against the open edge of the
ashing (see Figures 24 and 25). Apply wa-
terproof caulking to all seams and notches
around storm and also at base around
shingles.
Pitch Slope Opening
Flat 0° 19" V6F-10DM
0-6/12 26.6° 23.25" V6F-10DM
6/12-
12/12
56.3° 30.75" V12F-10DM
Figure 23 - Roof Opening Measurements
Opening
“A”
19" Min.
(48.26cm)
30" Min.
(76.2cm)
2" Min.
(5.08cm)
2" Min.
(5.08cm)
2" Min.
(5.08cm)
The replace system must be terminated with
the listed round top or chase terminations. In
any case, refer to the installation instructions
supplied with the termination.
Terminations approved for this replace are
RLT-12D, which can be used for ashing or
chase and STL-12D for chase style termina-
tion only. Figure 26, page 11, shows an RLT-
12D round top termination.
-
-
low the installation instructions
provided with the termination
being used.