What is meant by "overhaul" in firefighting?

"Overhaul" in firefighting refers specifically to the process of checking for hidden fire and ensuring the area is safe. This phase takes place after the visible flames have been extinguished, and it is crucial for preventing rekindling of the fire. During overhaul, firefighters carefully inspect the area to ensure that all embers, sparks, or hidden spots where fire could reignite are located and addressed. This can involve pulling down walls, moving furniture, and using thermal imaging to detect hotspots that may not be immediately visible.

The focus during overhaul is not only to ensure that all fire is completely out but also to secure the site for safety and prevent future incidents. It is an important step in the firefighting process that contributes to overall fire prevention and safety for both the firefighting team and the public.