Fire Protection Systems Explained
A property manager's guide to the fire protection systems in your building. Understand how each system works, where building codes require it, what inspection schedules apply, and what failures to watch for.
12 system types covered across 4 categories
Sprinkler Systems
Water-based automatic suppression systems that activate when heat from a fire reaches individual sprinkler heads or triggers a detection system.
Wet Pipe Sprinkler System
NFPA 13The most common fire sprinkler system, with water-filled pipes ready to discharge immediately when a head activates.
Dry Pipe Sprinkler System
NFPA 13Pipes filled with pressurized air or nitrogen instead of water, designed for spaces subject to freezing temperatures.
Pre-Action Sprinkler System
NFPA 13A two-step system requiring both detection activation and sprinkler head opening before water flows, protecting sensitive environments from accidental discharge.
Deluge Sprinkler System
NFPA 13All sprinkler heads are open with no heat-sensitive elements. When the system activates, water discharges from every head simultaneously to douse high-hazard areas.
Alarm Systems
Detection and notification systems that identify fire conditions and alert occupants and emergency responders.
Conventional Fire Alarm System
NFPA 72A zone-based fire alarm system that identifies which zone triggered an alarm but not the exact device, suitable for smaller buildings.
Addressable Fire Alarm System
NFPA 72Each device has a unique digital address, allowing the panel to identify the exact detector or module in alarm, enabling faster emergency response.
Suppression Systems
Specialized systems that use chemical agents or gases to extinguish fires in environments where water would cause unacceptable damage.
Kitchen Hood Suppression System
NFPA 17AWet chemical suppression system installed in commercial kitchen exhaust hoods, designed to extinguish grease fires on cooking surfaces and in ductwork.
Clean Agent Suppression System
NFPA 2001Gaseous fire suppression using FM-200, Novec 1230, or similar agents that extinguish fires without water damage or residue, designed for protecting electronics and critical equipment.
Other Systems
Supporting systems and equipment that complete a building's fire protection infrastructure.
Fire Extinguishers
NFPA 10Portable fire suppression devices classified by the type of fire they can extinguish (Class A, B, C, D, or K), required in virtually every commercial building.
Fire Pump System
NFPA 20A booster pump that increases water pressure to ensure adequate flow to sprinkler systems and standpipes in high-rise and large buildings.
Standpipe System
NFPA 14A fixed piping system with hose connections on each floor, providing firefighters with a reliable water supply for manual firefighting in tall or large buildings.
Smoke Control System
NFPA 92Engineered systems that manage smoke movement using pressurization, exhaust, or airflow to maintain tenable conditions in stairwells, atriums, and egress paths.
Need a qualified fire protection company?
Find NFPA-certified contractors who can inspect, test, and maintain any of these systems in your building.
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