DuraVent DirectVent Pro Installation Instructions Manual page 14

CEILING
JOISTS
1 1/2"
WOOD SCREWS
Figure 14
Step 5. Assemble the desired Pipe
Sections and Elbows necessary to
reach from the Appliance Adaptor up
through the Round Ceiling Cover or
Support Box. Ensure that all Pipe and
Elbow connections are in their fully
twist-locked position.
Step 6. Cut a hole in the roof
centered on the small drill hole placed
in the roof in Step 2. The opening
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minimum requirements for clearance
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appliance manufacturer. Continue to
assemble Pipe Sections and Elbows
14
CUT
AND FRAME
as necessary to reach up through the
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may be utilized in the attic, as well as
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due to higher corrosion resistance.
Notes:
(1) If exact lengths or distances must
DECORATIVE
CEILING
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SUPPORT
COVER elsewhere, use the Pipe Extensions
to adjust onto standard Pipe Sections
(Fig. 15).
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to avoid obstructions, it is important to
support the vent pipe in order to avoid
excessive stress on the Elbows. Wall
Straps or plumbers tape may be used
for this purpose (Fig. 16).
(3) Wherever possible, use 45°
Elbows instead of 90° Elbows. The
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Step 7. Slip the Roof Flashing over
the Pipe Section(s) protruding through
the roof. Use a non-hardening sealant
between the Roof Flashing and the
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Secure the base of the Roof Flashing
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top edge of the Roof Flashing (Fig.
PIPE
EXTENSION
PIPE
SECTION
Figure 15