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Ontario Building Code
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Volume 1
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Division B
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Part 3
3.1.9.6. Plenums
Feb 08, 2026
© King's Printer
Jan 16, 2025
(1)
A ceiling assembly used as a
plenum
shall conform to Article
3.6.4.3.
Mentioned in
Part 3. Fire Protection, Occupant Safety and Accessibility