What is one essential practice for ensuring firefighter safety during overhaul operations?

Continuous monitoring for hidden fires and structural integrity is an essential practice during overhaul operations because it directly addresses the critical risks associated with fire suppression activities. After the visible flames are extinguished, there may still be smoldering materials or pockets of fire that can reignite if not properly identified and dealt with. Firefighters must ensure that they thoroughly inspect the scene for any signs of heat or smoke that could indicate a hidden fire.

Additionally, maintaining an awareness of the structural integrity of the building is vital. The heat from the fire can compromise building materials, potentially leading to partial collapses or other hazards that can injure or trap firefighters. By continuously assessing both fire activity and structural safety, crews can operate more confidently and reduce the likelihood of injury, ensuring a safer environment for everyone involved in the overhaul process. This diligent monitoring is foundational to maintaining firefighter safety, making it the key practice highlighted in this scenario.