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37
Figure 33. Round and Trapezoid Termination
Caps
WARNING
THE BOTTOM OF THE VENT
TERMINATION CAP MUST BE A
MINIMUM OF 12 INCHES (305 MM)
ABOVE GROUND LEVEL (GRADE).
THE TOP OF THE CAP MUST BE A
MINIMUM OF 18 INCHES (457 MM)
BELOW COMBUSTIBLE MATERIAL,
SUCH AS A DECK, AND THE SIDE OF
THE CAP MUST BE A MINIMUM OF 6
INCHES (152 MM) AWAY FROM A
PARALLEL OUTSIDE WALL. VENTING
TERMINALS SHALL NOT BE
RECESSED INTO A WALL OR SIDING.
SEE THE FOLLOWING DIAGRAM FOR
VENT TERMINATION CLEARANCES.
For round cap termination:
1. Secure the pipe,
using the exterior
pipelock hole on the
round flange of the
wall firestop.
For trapezoidal
termination:
1. Screw the cap to
the exterior wall
through the flanges
in the cap.
2. Seal the joint
between the pipe
and the exterior
firestop.
!
ROUND CAP TERMINATION
PERFORATION CANNOT BE
INSIDE THE WALL
7 1/2"
(191mm)
MINIMUM
TRAPEZOID CAP TERMINATION
7 1/4"
(184mm)