25
Venting
Co-Axial
Overhang should not
extend beyond vent if
within 48” of
termination cap
Horizontal
overhang
Vertical
wall
Min. 24”
(unvented soffit)
Min. 36”
(vented soffit)
Termination
cap
Min.
18”
Storm
collar
Roof
flashing
‘H’
Vertical Vent Termination
Roof Pitch
Minimum
"H" (feet)
Flat to 7/12
1'
Over 7/12 to
8/12
1.5'
Over 8/12 to
9/12
2’
Over 9/12 to
10/12
2.5’
Over 10/12 to
11/12
3.25’
Over 11/12 to
12/12
4’
Over 12/12 to
14/12
5’
