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Heat & Glo • ST-HVBI-AUB • 2082-980 Rev. B • 3/11
Figure 28. Termination Cap
For Vertical Terminations -
To locate the fl ue and
install the fl ue sections:
• Locate and mark the fl ue center point on the under-
side of the roof, and drive a nail through the center
point.
• Make the outline of the roof hole around the center
point nail.
• The size of the roof hole framing dimensions depend
on the pitch of the roof. There
MUST BE
a 1-inch
(25 mm) clearance from the vertical fl ue pipe to
combustible materials.
• Mark the roof hole accordingly.
• Cover the opening of the installed fl ue pipes.
• Cut and frame the roof hole.
• Use framing lumber the same size as the roof rafters
and install the frame securely. Flashing anchored to
the frame must withstand heavy winds.
• Continue to install concentric fl ue sections up through
the roof hole and up past the roof line until you reach
the appropriate distance above the roof.
1” (25 mm)
7-1/2”
(192 mm)
MINIMUM
!
• Adjust the termination cap to its fi nal exterior position
on the building and interlock the fl ue sections.
• Use a high-temperature sealant gasket to seal be-
tween the pipe and exterior fi restop.
WARNING: THE TERMINATION CAP MUST
BE POSITIONED SO THAT THE ARROW IS
POINTING UP.
To seal the roof hole, and to divert rain and snow from
the fl ue system:
• Attach a fl ashing to the roof using nails, and use a
non-hardening fl exible joint sealant around the edges
of the fl ashing base where it meets the roof.
• Attach a storm collar over the fl ashing joint to form
a water-tight seal. Place non-hardening fl exible joint
sealant around the joint, between the storm collar
and the vertical pipe.
• Slide the termination cap over the end of the fl ue
pipe and snap into place.
!
WARNING: FOLLOWING NATIONAL REG-
ULATIONS AND CODES OF PRACTICE
FOR MINIMUM CLEARANCES FROM GAS
TERMINALS, AND PLACEMENT OF GAS
TERMINAL.
NOTE:
This also pertains to vertical fl ue systems in-
stalled on the outside of the building.
CAULK
NOTICE: Failure to properly caulk the roof fl ashing and
pipe seams may permit entry of water.
• Caulk the gap between the roof fl ashing and the
outside diameter of the pipe.
• Caulk the perimeter of the fl ashing where it contacts
the roof surface. See Figure 29.
• Caulk the overlap seam of any exposed pipe sections
that are located above the roof line.
Figure 29.