Fire Protection 

Last updated: June 16, 2026

This Attribute Glossary article provides definitions of attributes tied to a property's fire protection measures.

Attribute 

Definition 

Building Sprinklered 

A generalized indicator of what percentage of the building is sprinklered. A building 80% or more sprinklered is generally considered fully sprinklered. 

Percentage Sprinklered 

A more precise indicator of the percentage of the building that is sprinklered. Buildings above 85% sprinklered are generally considered fully sprinklered. 

Building Sprinkler Type 

The type of sprinkler used within the building. Common types include Wet Pipe, Wet ESFR, Dry, and Mixed. 

High Hazard Area Sprinkler Type 

Defines the type of sprinklers available to protect high-hazard areas within the building. 

In-Rack Sprinkler Type(s) 

Sprinklers that are part of the rack storage system, used to control fire spread throughout stored commodities. 

Sprinkler Head Size / K Factor 

A sprinkler head's K-factor represents its discharge coefficient, determining the flow rate of water released at a given pressure. 

Sprinkler Head Temperature Rating 

The specific temperature necessary to activate the sprinkler system. 

Sprinkler Piping Seismic / Sway Bracing 

Indicates if seismic bracing is present on the sprinkler system to mitigate the risk of damage during earthquakes. 

Natural Gas Pipe Seismic / Sway Bracing 

Indicates the presence of natural gas pipe seismic/sway bracing. 

Smoke Detectors 

Indicates whether the property has operational smoke detector systems installed. 

Natural Gas Automatic Shut-off 

Indicates the presence of a natural gas automatic shut-off valve. 

Storage Arrangement Description 

A general description of the storage of combustibles within the structure, including arrangement of high rack and other storage systems. 

Commodity Hazard Class 

A standardized system to categorize stored goods based on combustibility and potential fire intensity, used to design warehouse fire sprinkler systems. 

Back-up Generator 

Indicates whether the building has a back-up generator, typically used for the fire pump, emergency lighting, or other critical building functions. 

Back-up Generator Location 

Location of generators within or outside the building. 

Back-up Generator Diesel Storage Capacity 

The fuel/diesel storage capacity (in gallons) of the site's generator, fire pump, and other sources of diesel storage. 

Interior Stairwells With Fire Rated Doors 

Indicates the presence, absence, or characteristics of interior stairwells with fire-rated doors at the property. 

Fire Alarm 

Indicates whether the property has fire alarm systems installed and operational. 

Fire Detection Systems 

Details the presence of an operational system to detect fire, such as heat detectors, smoke detectors, etc. 

Fire Door Dampers 

Indicates the presence, absence, or characteristics of fire door dampers at the property. 

Fire Protection Description 

A tool for expanding the details of the property's fire protection system. 

Fire Protection Inspection Program 

Indicates the frequency of the fire protection inspection program, typically performed in accordance with NFPA 25. 

Fire Pump Annual Flow Test Results 

A once-a-year test to measure flow and pressure, and the duration of water supply available within the design parameters. 

Fire Pump Backup Period 

The time required that a fire pump must be operational if primary power supply is lost. 

Fire Pump Churn Rate 

The pressure at which the fire pump operates when no water is flowing. 

Fire Pump Excess Capacity 

Details the additional pressure or flow when the pump is oversized. 

Fire Pump Flow Rate Design 

The designed water flow rate of the fire pump. 

Fire Pump Power Supply 

The primary power type supplied to the fire pump. 

Flammable / Combustible Liquid Description 

Classification based on the flash point of the liquid. Flammable liquids have a flash point not exceeding 100°F (37.8°C); combustible liquids have a flash point of 100°F or higher. 

Flammable / Combustible Liquids On Site 

Provides details on the type of flammable or combustible liquids present on site. 

Flammable Liquid Gas Line Management 

Program to limit the accumulation of flammable liquids under combustible gas containers, such as propane. 

Flammable Liquid Capacity 

The quantity of flammable liquids in the building. 

Flammable Liquid Storage Location 

Defines where flammable and combustible liquids may be on the property, as typically governed by OSHA and building codes. 

Hydrant Flow Test Results – Residual 

A measure of water pressure and flow rate during periods where water is flowing. 

Hydrant Flow Test Results – Static 

A measure of water pressure and flow rate during periods where water is not flowing. 

Remote Monitoring of Sprinkler System 

Indicates if the building has remote monitoring operational for the sprinkler system. 

Number of Egress per Floor 

The total count or number of exits per floor, primarily dictated by the space's occupant load and local building codes such as the IBC. 

Number of Fire Hazard Areas 

A fire hazard area is a zone within a building with distinct fire protection features or other fire-related factors. 

Sprinkler Leak Detection System 

Indicates the presence of a leak detection system for the sprinkler system. 

Standpipes 

Indicates the presence, absence, or characteristics of standpipes at the property. 

Suitability of Fire Protection Measures 

Indicates whether the fire suppression systems for the building are determined to be adequate. 

Valve Inspection Program 

Indicates the implementation of a valve inspection program to mitigate potential for compromised sprinkler systems. 

Water Supply Flow Rate 

Defines the capacity of the water supply to supply the sprinkler system with water at a specific pressure throughout the duration of a fire event. 

Water Supply Time 

The duration of the water supply available under the design parameters for the specified fire sprinkler system.