Quadra-Fire Expression 36 QV36A-FB - Manual (Page 19)

19 Quadra-Fire • Expression 36 (QV36A-FB) • 2062-900 Rev. S • 11/11
C. Vertical Penetration Framing
Installing the Ceiling Firestop
• Frame an opening 10 inches by 10 inches
whenever the vent system penetrates a
ceiling/fl oor (see Figure 6.3).
• Frame the area with the same sized
lumber as used in ceiling/fl oor joist.
• When installing a top vent vertical
termination appliance the hole should be
directly above the appliance, unless the
fl ue is offset.
• Do not pack insulation around the vent.
Insulation must be kept away from the
pipe.
Figure 6.3
ATTIC ABOVE
10 IN. (254 MM)
HOLE SHOULD MEASURE
10 IN. X 10 IN.
(254 MM X 254 MM)
INSIDE TO INSIDE
10 IN.
(254 MM)
Installing Attic Shield
Note: An additional ceiling fi restop is not
required if attic shield is used.
• Frame opening for attic shield.
• Attic shield may be installed above or
below ceiling (see Figure 6.4).
• Secure with three fasteners on each
side.
• Fold tabs at top of attic shield in toward
vent pipe. Tabs must keep vent pipe
centered within shield.
• Field construct additional shield height if
insulation is deeper than height of attic
shield.
Figure 6.4 Installing the Attic Shield
3 FASTENERS
PER SIDE
BEND TABS IN
AROUND PIPE
ATTIC SHIELD INSTALLED
BELOW CEILING
ATTIC SHIELD INSTALLED
ABOVE CEILING
Fire Hazard
Keep loose materials or blown
insulation from touching the
vent pipe.
• National building codes recommend
using attic shield to keep loose materials/
blown insulation from contacting vent.
• Hearth & Home Technologies requires
the use of an attic shield.
WARNING