Ontario Building Code Practice Exam

A fire-rated floor-ceiling assembly in a residential building must have non-combustible materials, be labeled with a fire rating, and be continuous from wall to wall. However, a minimum thickness of 100 mm is not a specific requirement for a fire-rated assembly. This may vary depending on the design and construction of the building. Therefore, option D is not a necessary requirement for a fire-rated floor-ceiling assembly in a residential building.