What identifies the fire zone in a high-rise building?

In a high-rise building, the identification of the fire zone is primarily associated with the pressurization control system. This system is crucial for managing the flow of smoke in the event of a fire. It works by creating a pressure differential, typically in stairwells and elevators, which prevents smoke from entering these areas, allowing for safer evacuation and access for firefighters. The pressurization control provides a clear delineation of safe zones versus hazardous areas during a fire, effectively helping occupants and responders navigate the building safely.

While the fire alarm system and smoke detector placement are important for detection and alerting occupants of a fire, they do not specifically define or identify the fire zones within the building. The building's layout does inform the overall design and safety measures, but it is the pressurization control that directly impacts the management of smoke and heat during a fire event, providing a systematic approach to enhancing safety in high-rise structures.