What are the four stages of a fire?

The four stages of a fire are commonly recognized as Incipient, Growth, Fully Developed, and Decay. Understanding these stages is crucial for firefighting and fire prevention efforts.

During the Incipient stage, the fire is beginning to ignite, and typically this is the point where conditions such as fuel, heat, and oxygen come together, allowing for combustion to occur. Recognizing this stage can provide critical time for intervention before the fire escalates.

In the Growth stage, the fire is gaining strength and size, fueled by available materials, and its heat and smoke production increase significantly. At this point, the potential for rapid spread becomes more pronounced, which poses greater risks to structures and individuals.

The Fully Developed stage is characterized by the fire reaching its maximum size, where all combustible materials are actively burning and significant heat is produced. This stage represents the peak of a fire's intensity, and understanding this stage is essential for fire brigade members in determining tactics for suppression.

Finally, during the Decay stage, the fire begins to decrease in intensity as available fuel diminishes or fire suppression efforts take effect. This stage indicates that the fire is coming to an end, allowing firefighters to adjust strategies for extinguishment and containment.

Recognizing these stages helps fire brigade members