Ontario Building Code Practice Exam

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Prepare for the Ontario Building Code Exam! Utilize interactive flashcards and detailed multiple-choice questions, each with hints and thorough explanations. Ace your exam with confidence!

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Which of the following is not a requirement for a fire-rated damper assembly in a commercial building?

  1. Labeled with a fire rating

  2. Non-combustible materials

  3. Continuous from floor to underside of roof sheathing

  4. Minimum thickness of 25 mm

The correct answer is: Minimum thickness of 25 mm

A fire-rated damper assembly is required to be labeled with a fire rating, made of non-combustible materials, and be continuous from the floor to the underside of the roof sheathing. A minimum thickness of 25 mm is not a requirement for a fire-rated damper assembly, making option D incorrect. The other options are essential requirements for a fire-rated damper assembly in a commercial building.

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