In which stage of the burning process does flameover occur?

Flameover occurs during the fully developed stage of the burning process. At this point, the fire has established itself and is producing a significant amount of heat and energy. This results in the ignition of additional combustible materials in the vicinity, leading to a rapid spread of flames and an increase in fire intensity.

During the fully developed stage, the conditions such as temperature, oxygen availability, and fuel load are optimal for sustaining combustion. This stage is characterized by the potential for sudden changes in fire behavior, such as flashover or flameover, where flames can move rapidly from one area to another, often resulting in increased danger to people and property. Understanding this stage is crucial for firefighters in assessing fire behavior and implementing effective strategies for containment and safety.

The other stages of the burning process, such as ignition, initial growth, and decay, have different characteristics and dynamics, which do not facilitate the occurrence of flameover in the same way that the fully developed stage does.