Install Rf4-8 - Heatilator Direct Vent Gas Appliance CD4236MILR Owner's Manual

I. Install RF4-8
The RF4-8 may be used in place of the roof fl ashing and
storm collar (Sections 10.G. and 10.H.)
Pipe must be supported within 12 in. (305 mm) of the
roofl ine using plumbers strapping or an SLP-FS when us-
ing the RF4-8 Flashing. Refer to Sect. 8.C. Securing Vent
Sections.
SLP-FS
Figure 10.18 Secure Pipe with SLP-FS
• Trim the rubber boot (using scissors or a utility knife),
cutting along the marked measurement lines. See Figure
10.19. Use the 150 mm line for SLP, 210 mm for DVP.
• Lubricate pipe or fl ue with water and slide the fl ashing
down. It may be necessary to trim the top shingles
around the base of the rubber boot to ensure a good
fi t.
• Draw around fl ashing, remove.
• Apply silicone sealant to roof inside the lines (Figure 10.20)
• Lubricate pipe or fl ue with water and slide fl ashing down.
Seat fi rmly in sealant. Nail roof fl ashing to the roof.
• Apply silicone sealant on the top outside of the base
plate on the sides and on top edge. See Figure 10.21.
Install shingles, Apply sealant at the top edge of the
rubber boot. See Figure 10.22.
• We recommend that you top coat with conventional
acrylic house paint to improve the appearance of your
galvanized base fl ashing.
Figure 10.19 Trim Rubber Boot
46
Secure with 4
screws no longer
than 1/2 in./13 mm
Heatilator • Caliber Mesh CD Series-SIT Valve • 4040-849 Rev J • 06/08
Figure 10.20 Apply Sealant
Figure 10.21 Slide Flashing Down, Secure & Apply Sealant
Silicone Sealant
(top of boot)
Flashing over
Shingles over
Shingles
Flashing
Figure 10.22 Installation Complete
Apply Sealant
Top & Partial Sides
Shingles Trimmed