Install The Ceiling Firestop - Quadra-Fire QFP44 Owner's Manual

C. Install the Ceiling Firestop
A ceiling fi restop MUST be used between fl oors and at-
tics.
• Frame an opening 10 in. by 10 in. (254 mm by 254
mm) whenever the vent penetrates a ceiling/fl oor (see
Figure 8.3).
• Frame the area with the same sized lumber as used in
ceiling/fl oor joist.
• The ceiling fi restop may be installed above or below
the ceiling joists when installed with a attic insulation
shield. It must be under joists between fl oors that are
not insulated. Refer to Figure 8.4.
• Secure with three fasteners on each side.
WARNING! Risk of Fire!
the vent. Insulation must be kept back from the pipe to pre-
vent overheating.
34
DO NOT pack insulation around
Quadra-Fire • QFP44 • 4051-300 • Rev. U • 4/11
Figure 8.3 Installing Ceiling Firestop
Install attic insula-
tion shields before
or after installation
of vent system.
3 fasteners
per side
Ceiling firestop
installed below ceiling.
Figure 8.4 Installing the Attic Shield
Attic Above
10 in. (254 mm)
10 in.
(254 mm)
Hole should measure
10 in. x 10 in.
(254 mm x 254 mm)
inside to inside
Ceiling firestop
installed above ceiling.