In Group I-2 occupancies, how must smoke barriers be configured if the story is used for care, treatment, or sleeping?

In Group I-2 occupancies, which include facilities such as hospitals, nursing homes, and rehabilitation centers, the configuration of smoke barriers is critical for ensuring the safety and effective evacuation of occupants. These buildings often house individuals who may have mobility issues or require assistance during emergencies, making smoke control systems a vital component.

The requirement for at least two smoke compartments is essential in these settings because it helps to limit the movement of smoke and fire throughout the building. In the event of a fire, smoke barriers can contain smoke within a designated area, allowing for safer egress routes and providing additional time for evacuation or rescue operations. By designating at least two smoke compartments, the design further minimizes the risk that smoke will impede evacuation routes or endanger occupants, particularly in care, treatment, or sleeping areas where individuals may not be able to self-evacuate quickly.

In situations where there might be only one smoke compartment, the potential risk increases as smoke could rapidly fill the entire space, severely limiting safety. Thus, having at least two smoke compartments helps to enhance the overall safety of the occupants in Group I-2 occupancies.