What does the term 'overhaul' refer to in firefighting?

The term 'overhaul' in firefighting specifically refers to the search for hidden fires after primary control has been achieved. This is a critical aspect of firefighting operations, as even after a fire appears to be extinguished, embers or hidden flames can remain and reignite. During the overhaul process, firefighters systematically check the area to ensure that all potential hotspots are fully cooled and that there are no lingering pockets of fire that could pose a risk of re-ignition. This step is essential for preventing flare-ups and ensuring the safety of both the responders and the surrounding environment.

Understanding this concept helps to highlight the importance of thoroughness in firefighting, as just extinguishing visible flames does not guarantee that the fire is truly out. The overhaul phase ensures that all aspects of the fire have been addressed, leading to a more comprehensive and effective response.