Heatilator Constitution C40-C Installation Manual page 29

E. Install Firestops
WARNING! Risk of Fire!
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the ceiling joists.
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• Provide a means to maintain the required air space
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insulation shield.
ROOM ABOVE (non-insulated ceiling)
B
Ceiling firestop
attached to bottom
of framing
ATTIC ABOVE (insulated ceiling)
Ceiling firestop
attached to top of
framing
2 in. (51mm)
clearance
Note: Use same dimensional lumber for framing
ceiling firestop and joists.
Catalog # LQ
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Figure 6.6 Installing the Ceiling Firestop
WARNING! Risk of Fire! DO NOT VHDO DUHD EHWZHHQ
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Heatilator • C40-C Constitution Installation Manual • 4186-901 • Rev H • 03/23
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A
2 in. (51mm)
clearance
A B
mm LQ mm
  
  
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