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Venting
Vertical Vent Termination
Minimum
Roof Pitch
"H" (feet)
Flat to 7/12
1'
Over 7/12 to
1.5'
8/12
Over 8/12 to
2'
9/12
Over 9/12 to
2.5'
10/12
Over 10/12 to
3.25'
11/12
Over 11/12 to
4'
12/12
Over 12/12 to
5'
14/12
Horizontal
overhang
Vertical
Min.
wall
[458 mm]
Storm
collar
Roof
Overhang should not
extend beyond vent if
within 48" [1220 mm] of
termination cap
Termination
cap
18"
Co-Axial
Min. 24" [610 mm]
Min. 36" [915 mm]
'H'
23
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