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F. Vertical Penetration Framing
WARNING
Fire Risk
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.
Install the Firestop Spacer
•
Frame an opening 10 in. by 10 in. whenever the vent
system penetrates a ceiling/fl oor (see Figure 2.17).
•
Frame the area with the same sized lumber as used in
ceiling/fl oor joist.
•
When installing a top vent vertical 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.
Note: The fi restop spacer is not required if attic insulation
shield is used.
Install Attic Insulation Shield
•
Frame opening for attic insulation shield.
•
Attic insulation shield may be installed above or below
ceiling (see Figure 2.18).
•
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.
10
Hearth & Home Technologies Inc. • Cinch Pipe & Term Caps • 4033-900 Rev K • 05/05
Attic insulation shield
installed below ceiling.
Figure 2.18 Installing the Attic Insulation Shield
Figure 2.17 Installing Firestop Spacer
Bend tabs in
around pipe
3 fasteners
per side
Attic insulation shield
installed above ceiling.
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
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