Enviro Cara - Manual (Page 23)

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attic, as well as above the roof line. The galvanized finish is desirable above the roof line, due to the
higher corrosion resistance.
6. Once the pipe sections have been joined, and run up through the hole in the roof, slip an elbow strap
over the exposed sections, bend the support straps outwards, and push the elbow strap down to the
roof level, as shown in Figure 34. Tighten the clamp around the pipe section. Use a level to make sure
the pipe is truly vertical. With roofing nails, secure the support straps to the roof. Seal the nails holes
Figure 36: Wall Framing for Hole for Vertical Installation.
heads with non-hardening
mastic. Trim the excess
length of the support straps
that extend out beyond the
edge of the flashing.
7. Slip the flashing over the
pipe section protruding
through the roof. Secure
the base of the flashing to
the roof with roofing nails.
Use a non-hardening sealant
between the uphill edge of
the flashing and the roof.
Insure the roofing material
overlaps the top edge of the
flashing as shown in Figure
37. Verify that you have at
least the minimum clearance
to combustibles at the roof
line.
3. To install the Round Support Box/Wall
Thimble in a flat ceiling, cut a 10” square
hole in the ceiling, centered in the hole
drilled in Step 2. Frame the hole as shown
in Figure 36.
4. Assemble the desired lengths of black pipe
and elbows necessary to reach from the
appliance adapter up through the Round
Support Box. Insure that all pipe and
elbow connections are in their fully twist-
locked position.
5. Cut hole in the roof centered on the small
hole placed in the roof from Step 2. The
hole should be of sufficient size to meet
minimum requirements for Clearance
to Combustibles, as specified. Continue
to assemble lengths of pipe and elbows
necessary to reach from the ceiling support
box up through the roof line. Galvanized
pipe and elbows may be utilized in the
Vertical
Termination
Storm Collar
Flashing
Roofing nails
Elbow Strap
Figure 37: Vertical Vent Termination Installation.
Initial Installation
QUALIFIED INSTALLERS ONLY