During which fire phase does the temperature peak, potentially leading to a flashover?

During a fire event, the growth stage is the phase where conditions are ideal for the temperature to reach its peak and flashover to occur. Flashover is characterized by the sudden ignition of combustibles in a room due to the build-up of heat, which can reach temperatures exceeding 1000 degrees Fahrenheit. During this phase, the fire starts to spread and can rapidly increase in intensity as the heat from the flames raises the temperature of all surfaces within the confined area.

While the post flashover phase occurs after this significant event has happened and is marked by different dynamics, it is in the growth stage where the fire transitions toward flashover conditions. Recognizing this transition is crucial for firefighters and investigators as it helps in understanding the potential for sudden and violent fires that pose significant risks and challenges.