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54010F
10
Effective Height of
Termination Cap
Effective Height of
Termination Cap
Effective Height of
Termination Cap
RT-8DM
RT-8DM
RT-8DM
14' Min.
Height
Standard Installation
Alternate Installation
15' Min.
Height
2' Max
Pipe Length
30E-8DM
Maximum
Height
60'
VENTING INSTALLATION
Continued
PENETRATING ROOF
To maintain a 1" clearance to pipe on a roof with
a pitch, a rectangular opening must be cut.
1. Determine the center point through which
pipe will penetrate roof.
2. Determine center point of roof. Pitch is the
distance the roof drops over a given span,
usually 12". A 6/12 pitch means that the
roof drops 6" for each 12" one measure
horizontally down from roof rafters.
3. Use roof opening chart (Figure 18) to
determine correct opening length and
flashing required.
4. Remove shingles around opening mea-
sured. Cut out this section.
Figure 17 - Typical Installation
Pitch
Slope
Opening
"A" Max.
Used Flashing
Model No.
Flat
0°
17"
V6F-8DM
0-6/12
26.6°
19.125"
V6F-8DM
6/12-
12/12
45.0°
24.25"
V12F-8DM
Figure 18 - Roof Opening Measurements
Opening
“A”
19" Min.
(48.26cm)
30" Min.
(76.2cm
2" Min.
(5.08cm)
2" Min.
(5.08cm)
2" Min.
(5.08cm)