Venting
Vertical Vent Termination
Mini-
Roof
mum "H"
Pitch
(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
Termination
cap
Vertical
Min.
wall
18"
Storm
collar
Roof
flashing
Roof Termination
Overhang should not
extend beyond vent if
within 48" of
termination cap
Min. 24"
(unvented soffit)
Min. 36"
(vented soffit)
Clearance to air inlet to
any other appliance is
'H'
min. 12" (30 cm)
25