Louisville Restaurant Fire Suppression System Requirements

Louisville Metro & Kentucky State Fire Suppression Codes

Louisville restaurants must comply with the Kentucky Building Code (KBC), which adopts the International Building Code (IBC) with state modifications. The Louisville Metro Code requires all commercial cooking operations with solid fuel or grease-laden cooking to install wet chemical or Class K suppression systems over cooking surfaces and hood exhaust ducts. Kentucky's Division of Fire Prevention oversees compliance, and the Louisville Fire Department conducts kitchen inspections as part of health permits. Systems must be inspected and certified annually by a Kentucky-licensed fire protection contractor, with documentation provided to the health department. Installation, maintenance, and testing records are required during routine Louisville Metro Health Department inspections.

Hood Duct & Nozzle Placement Standards

Kentucky regulations require fire suppression nozzles to be installed in the hood exhaust duct (not just over cooking equipment), as duct fires are a significant commercial kitchen hazard. Nozzles must be positioned to protect the full length of grease-laden duct systems, with spacing determined by duct diameter and system design. The system must activate both the hood suppression agent and an interconnected dry chemical or wet chemical agent in the duct itself. Louisville inspectors verify nozzle placement during initial installation and annual permit renewals. Systems that do not include duct protection may fail inspection and require expensive retrofitting before operations can continue.

Maintenance, Testing & Compliance Documentation

Kentucky regulations mandate that fire suppression systems be serviced every 6 months by a licensed contractor, with full recharge required after any discharge or cook-off test. Louisville requires restaurants to maintain inspection tags, service records, and a current Certificate of Installation on the equipment at all times. The system's manual pull-down station must be kept clear and accessible, and staff must receive documented annual training on operation and evacuation procedures. Health department inspectors will request proof of service compliance during routine visits; missing or outdated records result in violations that can escalate to closure orders. Documentation should include agent refills, nozzle inspections, and any repairs to ensure the system functions in an actual fire.

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