Ontario Building Code Practice Exam

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

Labeled with a fire rating
Non-combustible framing
Minimum thickness of 6 mm
Continuous from floor to underside of roof sheathing

The correct answer is: Minimum thickness of 6 mm

Fire-rated glazing assemblies are designed to prevent the spread of fire and smoke in a commercial building. This means that the glazing must be able to withstand high temperatures and prevent the passage of flames and smoke. Therefore, options A, B, and D are all requirements for a fire-rated glazing assembly. A fire rating label is necessary to ensure that the assembly has been tested and meets the required safety standards. Non-combustible framing materials are essential to prevent the glazing from igniting and spreading the fire. The glazing must also be continuous from the floor to the roof sheathing to provide a barrier against the vertical spread of fire. Option C, a minimum thickness of 6 mm, is not a requirement for a fire-rated glazing assembly in a commercial building. While thicker glazing may offer better fire protection, it is not a necessary requirement for a fire-rated assembly.