According to the IBC, in which location are strobe lights/appliances not required?

Strobe lights and alarm appliances are designed to provide visual alerts in environments where audible signals may not be sufficiently effective. In the context of the International Building Code (IBC), there are specific guidelines regarding where these devices need to be installed to ensure occupant safety and effective alarm notifications.

Elevator cars are not required to have strobe lights because they are typically designed with audible alarms and may also include visual signals outside the elevator doors to alert individuals waiting on floors. The design of elevator systems often ensures that occupants can visually see or hear the alerts from a position where it can be clearly understood, reducing the need for additional alert devices within the car itself.

In contrast, other locations such as residential halls, stairwells, and mechanical rooms may have occupants who are not as readily aware of audible alarms or who might be in situations where visual cues are crucial for effective communication of an emergency situation. Therefore, strobe lights are mandated in these spaces to enhance safety compliance.

Understanding these requirements helps reinforce the intention behind fire alarm system design, which prioritizes the safety and awareness of all building occupants.