Room Integrity Fan Testing

Veterans Fire Protection Inc.

Room integrity fan testing (or door fan testing) is a critical procedure, required by NFPA 2001 standards, that measures the airtightness of an enclosure protected by a gaseous fire suppression system by installing a fan in a doorway, technicians pressurize and depressurize the room to calculate leakage, ensuring the agent remains at a 85% concentration for at least 10 minutes to prevent re-ignition. Recognizing the critical role these devices play in emergency situations, our experts go beyond mere compliance – we tailor our services to meet the unique fire safety needs of your environment.

Key Aspects of Enclosure Integrity Testing:

Purpose: Measures the Equivalent Leakage Area (ELA) to determine if a room can hold fire suppressant gas long enough to extinguish a fire.
Methodology: A specialized fan is temporarily installed in the doorway to simulate the pressure of a discharge. The test calculates the "hold time" (how long the gas stays) and the "peak pressure" (maximum pressure exerted during discharge).
Requirements: NFPA 2001 demands this test for clean agent systems to ensure effectiveness.
Process: The test is performed upon installation and usually annually, involving both pressurization and depressurization.
Components:
Leakage Test: Measures the total area of all gaps, cracks, and holes in the room.
‍Pressure Test: Assesses the structure's ability to withstand the discharge.
‍Below Ceiling Leakage Area (BCLA): Often required for rooms with drop ceilings to identify specific ceiling-level leaks.
Importance: Ensures that penetrations for pipes and cables do not compromise the system, allowing the agent to escape.

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If the room fails to maintain the necessary pressure, the fire suppression system may not operate effectively

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