Where is the area that necessitates a 1-hour occupancy separation?

A 1-hour occupancy separation is required in scenarios where different types of occupancies may have varying levels of fire risk. In this specific case, the separation between the Gallery and the Parking Garage is critical because parking garages are typically classified as hazardous areas due to the presence of vehicles and their potential for fuel-related fires.

Establishing a 1-hour occupancy separation helps to contain fires that might start in the parking garage and prevent them from spreading to adjacent spaces, such as the Gallery. This separation is designed to safeguard the occupants in the Gallery and minimize the potential for smoke and flames to affect the safer area.

In contrast, other spaces like the Church and the Gallery, or within the Gallery itself, might not necessitate such stringent separation because they typically involve similar levels of occupancy and fire risk. Similarly, the space between the Parking Garage and the public entrance does not require this level of separation in every circumstance, as the entrance may not pose a similar threat compared to adjoining spaces like the Gallery. Thus, the specified separation in the context of a parking garage is crucial for maintaining safety standards in building design and occupancy.