What is the minimum fire resistive rating for exterior walls, floors, and roofs in a Class 6 construction?

In Class 6 construction, the minimum fire resistive rating for exterior walls, floors, and roofs is indeed 2 hours. This classification reflects the need for a certain level of fire resistance to protect the structure and its occupants in the event of a fire. Class 6 buildings are typically characterized by their use of materials and construction methods that provide enhanced fire protection.

The 2-hour rating indicates that these components are designed to withstand fire exposure for at least that duration, which helps to inhibit the spread of fire between compartments and potentially allow occupants more time to evacuate safely. Such stringent requirements are established in building codes to ensure safety and minimize property damage in the case of a fire incident.