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Pass the vent vertically through the hole in the roof and fasten
to the roof support. The top part of the vent must be at least
16 inches higher than the highest part of the hole.
Make sure you have the correct flashing model; different
models that will fit your roof's slope are available at your
retailer. Slide the flashing on the connector to have it sit flat
on the roof. There must be a good layer of sealant between
the flashing and the roof to waterproof the assembly. The vent
must come up at least ¾ in. above the flashing. Paint the
flashing to increase useful life and tightness. Replace shingles
at the base of the flashing.
Adjust the storm collar to the vent connector and apply a
generous layer of latex-based sealant on the top edge of the
flashing and slide the collar to make contact. Apply pressure
to seal assembly (figure 3.2.3.8.e) Encase the vent on the
connector and tighten.
3.2.4. ASSEMBLY AND FASTENING OF VENT SECTIONS
3.2.4.1. H
ARD VENT SECTION ASSEMBLY
• Apply a generous bead high-temperature latex-based sealant inside the female part of each section
as shown in figures 3.2.4.2.a and 3.2.4.2.b.
• Connect the two sections and have them overlap on at least 1.5 in. (3.8 cm).
• Fasten both sections together with three self-drilling screws as shown in figure 3.2.4.2.c. Some
section have a twist lock, lock it and secure it with three screw. Follow your vent manufacturer
manual...
Figure 3.2.4.2.a
43
Figure 3.2.4.2.b
Figure 3.2.3.8.d
Figure 3.2.3.8.e
Figure 3.2.4.2.c
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