26
This shows an attic installation.
1.Keep insulation away from the vent pipe at least 1 inch (25 mm).
If the area above the ceiling IS an attic, position and secure the firestop on top of the previously framed hole.
JOIST |
CEILING |
NAILS (4 REQUIRED) |
CEILING FIRESTOP |
Figure 24. 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 beginning 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 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.
