If the area above the ceiling is NOT an attic, position and secure the ceiling firestop on the ceiling side of the previously cut and framed hole.
JOIST
CEILING
NAILS (4 REQUIRED)
CEILING FIRESTOP
Figure 29. Ceiling Firestop (Ceiling Side)
If the area above the ceiling IS an attic, position and secure the firestop on top of the previously framed hole.
NOTE: Keep insulation away from the vent pipe at least 1 inch (25mm).
NOTE: There must be NO INSULATION or other combustibles inside the framed firestop opening.
NAILS (4 REQUIRED)
RAFTER
CEILING
CEILING FIRESTOP
Figure 30. Attic Firestop
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 POINTING UP.
For trapezoidal cap termination kits:
•Using screws secure the cap to the exterior wall through the flanges in the cap.
!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 18 INCHES (457 MM) BELOW COMBUS-
TIBLE MATERIAL, SUCH AS A DECK. 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 RE- CESSED INTO A WALL OR SIDING. SEE THE FOL- LOWING DIAGRAM FOR VENT TERMINATION CLEARANCES.
TRAPEZOID CAP TERMINATION
7 1/4" (184mm)
Figure 31. Trapezoid Termination Caps
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