Ontario Building Code Practice Exam

Question: 1 / 400

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

Non-combustible materials

Labeled with a fire rating

Continuous from floor to underside of roof sheathing

Minimum thickness of 75 mm

A fire-rated wall assembly in a commercial building must be constructed with non-combustible materials, labeled with a fire rating, and be continuous from floor to underside of roof sheathing. However, there is no minimum thickness requirement for a fire-rated wall assembly. While a thicker wall may offer better fire resistance, it is not a specific requirement. Therefore, D is not a requirement for a fire-rated wall assembly.

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