In Type III 2-1-1 construction, what is the fire resistance rating of the exterior bearing walls?

In Type III construction, which is often referred to as "Ordinary" construction, the exterior bearing walls are required to have a fire resistance rating of at least one hour. This rating is designed to provide adequate time for occupants to evacuate the building and for fire services to respond effectively in the event of a fire.

However, in the context of Type III 2-1-1 construction specifically, the rating reflects the combination of materials used, and the unique qualities of the design that result in the exterior walls needing an enhanced level of fire resistance due to the potential for rapid fire spread. The one-hour fire resistance rating applies to the exterior bearing walls, ensuring these structures are built to withstand fire exposure adequately for that specified duration.

While options suggesting higher fire resistance ratings may apply to different construction types or specific interior elements, they are not applicable in the case of Type III 2-1-1 buildings, as the established one-hour rating meets the standards set forth by building codes for that construction style. Thus, the answer maintains the safety requirements that are crucial in fire protection and structural integrity during a fire incident.