25
!
C. Vent Termination
For Horizontal Terminations
-
To attach and secure
the termination to the last section of horizontal vent:
Rotate and interlock the ends as described at the begin-
ning of the Installing Vent Components section.
The termination kit should pass through the wall firestops
from the exterior of the building.
Adjust the termination cap to its final exterior position on
the building.
WARNING: THE TERMINATION CAP MUST BE
POSITIONED SO THAT THE ARROW IS POINT-
ING UP.
For roundcap termination kits:
Use the exterior pipelock hole provided on the round
flange of the wall firestop to secure the vent pipe in
place.
For trapezoidal cap termination kits:
Using screws, secure the cap to the exterior wall
through the flanges built into the cap.
Figure 24. Round & 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 MIN-
IMUM OF 24 INCHES (690 MM) BELOW COMBUS-
TIBLE MATERIAL, SUCH AS A DECK, AND THE
SIDE OF THE CAP MUST BE A MINIMUM OF 6
INCHES (152 MM) AWAY FROM A PARALLEL OUT-
SIDE WALL. VENTING TERMINALS SHALL NOT
BE RECESSED INTO A WALL OR SIDING. SEE FIG-
URE 25 FOR VENT TERMINATION CLEARANCES.
ROUND CAP TERMINATION
PERFORATION CANNOT BE
INSIDE THE WALL
7 1/2"
(191mm)
MINIMUM
TRAPEZOID CAP TERMINATION
7 1/4"
(184mm)