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126607-01A
11
VENTING INSTALLATION
Continued
Pitch
Slope Opening
"A" Max.
Used Flashing
Model No.
Flat
0°
15"
V6F-8DM
0-6/12
26.6°
16
1
/
8
"
V6F-8DM
6/12- 12/12 45.0°
20
3
/
8
"
V12F-8DM
Figure 18- Roof Opening Measurements
PENETRATING ROOF
To maintain a 1" clearance to pipe on a roof with a pitch, a rectangular
opening must be cut.
1. Determine center point where pipe will penetrate the roof.
2. Determine center point of the 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" 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 measured. Cut out this section.
Nail Only Outer
Perimeter of
Flashing
Storm Collar
Underlap Shingles
at Bottom
Figure 19 - Flashing Installation
Flashing
Cone
Overlap
Shingles Top
and Sides Only
5. Add next sections of pipe until end penetrates roof line. Check to see
that proper clearances are maintained. Extend chimney by adding
sections of double wall pipe until pipe is minimum of 30" above
highest point of roof cutout. Termination and chimney must extend
a minimum of 36" above highest point where it passes through the
roof.
IMPORTANT: If an exposed portion of chimney
is greater than 4' above roofline, use support wires
to keep chimney secured. Support wires may be at-
tached to outer pipe of chimney with screws provided
screws do not penetrate inner flue pipe.
Figure 20 - Storm Collar
Chimney
Pipe
Waterproof
Caulk
Storm
Collar
Flashing
FLASHING INSTALLATION
Determine flashing to be used with roof opening chart. Slide flashing
over pipe until base is flat against roof. Replace as many shingles as
needed to cover exposed area and flashing base. Secure in position
by nailing through shingles (see Figure 19).
DO NOT NAIL THROUGH
FLASHING CONE
.
30"
(76.2 cm)
Minimum Measurements
Opening "A"
14
3
/
8
"
(48.3 cm)
1"
(2.54
cm)
1"
(2.54
cm)
1"
(2.54 cm)
Installing Flashing on a Metal Roof
When installing flashing on a metal roof, it is required that putty tape
be used between flashing and roof. Flashing must be secured to roof
using #8 x 3/4" screws and then sealed with roof coating to prevent
leakage through screw holes. A roof coating must also be applied
around perimeter of flashing to provide a proper seal.
STORM COLLAR INSTALLATION
Place storm collar over pipe and slide down until it is snug against
open edge of flashing (see Figure 20). Use SC1 for all round termina-
tions. Apply waterproof caulk around perimeter of collar to provide
a proper seal.
TERMINATIONS
Standard Installation
The fireplace system must be terminated with the listed round top
or chase terminations. Terminations approved for this fireplace are
RTL-8DM, which can be used for flashing or chase and ETL-8DM for
chase style termination only. Figure 21, page 12 shows an RTL-8DM
round top termination.
Follow installation instructions provided with termination being used.
