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Heat & Glo • SOHO-N-AUB • 2197-980 Rev. F • 5/12
10 in. (254 mm)
10 in. (254 mm)
INTERIOR
WALL SHIELD
F. Install Firestops
For Horizontal Runs - Firestops are REQUIRED on both
sides of a combustible wall through which the ue passes.
To install restops (heat shield) for horizontal runs that pass
through either interior or exterior walls:
• Cut a 1 in. x 1 in. (25 mm x 25 mm) hole through the wall.
• Position the restops on both sides of the hole previously
cut and secure the restops with nails or screws.
• The pipe opening of the restops MUST BE placed
towards the bottom of the restop.
• Continue the ue run through the restop.
Figure 10.10 Flue Pipe & Firestop
CEILING
NEW
FRAMING
MEMBERS
EXISTING CEILING
JOISTS
CHIMNEY
HOLE
A
B
Figure 10.11 Hole and New Framing Members
For Vertical Runs - One restop is REQUIRED at the hole
in each ceiling through which the ue passes.
To install restops for vertical runs that pass through
ceilings:
• Position a plumb bob directly over the center of the
vertical ue component.
• Mark the ceiling to establish the centerpoint of the ue.
• Drill a hole or drive a nail through this center point.
• Check the oor above for any obstructions, such as
wiring or plumbing runs.
• Reposition the replace and ue system, if necessary,
to accommodate the ceiling joists and/or obstructions.
• Cut a 9 in. x 9 in. (229 mm x 229 mm) hole through the
ceiling when using SLP pipe. Use the restop pipe open-
ing as a guide.
• Frame the hole with framing lumber the same size as
the ceiling joists.
A B
SLP 9 in. (229 mm) 9 in. (229 mm)
Figure 10.12 Ceiling Firestop (Ceiling Side)
Figure 10.13 Attic Firestop
CEILING
CEILING FIRESTOP
RAFTER
NAILS (4 REQUIRED)
JOIST
CEILING FIRESTOP
CEILING
NAILS (4 REQUIRED)
If the area above the ceiling IS an attic, position and secure
the restop on top of the previously framed hole.
If the area above the ceiling is NOT an attic, position
and secure the ceiling restop on the ceiling side of the
previously cut and framed hole.