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16
Drill a hole or drive a nail through this centerpoint.
Check the floor above for any obstructions, such as
wiring or plumbing runs.
Reposition the fireplace and vent system, if neces-
sary, to accommodate the ceiling joists and/or
obstructions.
Cut a 11-inch X 11-inch (280 mm X 280 mm) hole
through the ceiling, using the centerpoint previously
marked.
Frame the hole with framing lumber the same size
as the ceiling joists.
1. Cut the ceiling hole.
2. Add the new framing
members.
Figure 16. Hole and New Framing Members
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.
This shows a ceiling
installation.
Figure 17. Ceiling Firestop (Ceiling Side)
JOIST
CEILING FIRESTOP
NAILS (4 REQUIRED)
CEILING