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.
NOTE: There must be NO insulation or other combustibles inside the framed firestop opening.
NAILS (4 REQUIRED) |
RAFTER |
CEILING |
CEILING FIRESTOP |
Figure 16. Attic Firestop
C. Vent Termination
For Horizontal Terminations - The trapezoidal cap
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 (see Figure 17).
22 | Heat & Glo • |
