A functional assessment procedure evaluates the operational reliability of a fire-rated closure. This procedure involves releasing the door from a fully open position, allowing it to close under its own weight and latch securely within its frame. This ensures the self-closing mechanism is functioning correctly and that the door is capable of providing the intended fire protection. For example, a technician might use a calibrated release mechanism to ensure consistent opening angles during successive trials.
The procedure plays a vital role in validating that a fire-rated door will perform as intended during a fire event. Successful completion indicates the door’s ability to compartmentalize fire and smoke, thereby protecting occupants and property. Historically, these assessments have become increasingly standardized and are crucial for regulatory compliance and maintaining building safety codes.