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Initial Installation
QUALIFIED INSTALLERS ONLY
Vertical
Termination
Storm Collar
Flashing
Roofing nails
Elbow Strap
STEP 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 21. Tighten the clamp around the pipe section. Use
a level to make sure the pipe is truly vertical. With roong nails, secure the support straps to
the roof. Seal the nails holes heads with non-hardening mastic. Trim the excess length of the
support straps that extend out beyond the edge of the ashing.
STEP 7. Slip the ashing over the pipe section protruding through the roof. Secure the base of the
ashing to the roof with roong nails. Use a non-hardening sealant between the uphill edge of
Figure 21: Vertical Vent Termination Installation.
H
Dimension ‘H’ obtained
from table below.
Table 3: Minimum ‘H’ for Figure 22.
Roof Pitch Minimum Height
Feet Meters
Flat to 7/8 1 0.3
Over 7/12 to 8/12 1.5 0.46
Over 8/12 to 9/12 2 0.61
Over 9/12 to 10/12 2.5 0.76
Over 10/12 to 11/12 3.25 0.99
Over 11/12 to 12/12 4 1.22
Over 12/12 to 14/12 5 1.52
Over 14/12 to 16/12 6 1.83
Over 16/12 to 18/12 7 2.13
Over 18/12 to 20/12 7.5 2.29
Over 20/12 to 21/12 8 2.44
Figure 22: Height of Vertical Termination;
Reference Table 3.
the ashing and the roof. Insure the roong
material overlaps the top edge of the ashing
as shown in Figure 21. Verify that you have at
least the minimum clearance to combustibles
at the roof line.
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