What is required for smoke partitions that limit smoke transfer?

Smoke partitions are integral components in the overall fire protection strategy within commercial buildings. Their primary role is to limit the transfer of smoke between different areas to help maintain safe egress routes and to contain smoke in specific areas during a fire event.

Having automatic-closing doors is essential for smoke partitions because these doors can close automatically when triggered by a smoke detection system. This feature helps ensure that the partition performs its intended function during a fire by preventing smoke from moving from one area to another. Automatic-closing mechanisms are designed to engage effectively, thereby enhancing fire safety resilience throughout the building.

Other choices, while seemingly relevant, do not align with the fundamental goals and requirements for smoke partitions. For instance, smoke partitions cannot be open at all times or have no openings, as this would directly conflict with their purpose of limiting smoke transfer. Additionally, not sealing the partitions would allow smoke to pass through freely, defeating their purpose altogether. Thus, the requirement for automatic-closing doors is crucial to comply with safety codes and regulations aimed at protecting occupants and property in the event of a fire.