What is the approach in situations where a structure is lost to fire?

• A. Offensive search and attack
• B. Defensive operations would be appropriate to protect firefighters.
• C. Ventilation-only approach
• D. Evacuate the area and wait

Answer: (B)

When a structure is lost to fire, the priority becomes protecting firefighters by switching to a defensive strategy. The building is so severely involved that interior operations are too dangerous—risks of collapse, extreme heat, and rapid fire spread make interior search and attack untenable. A defensive approach means applying suppression from the outside, protecting exposures, and establishing a safe perimeter while keeping crews out of the structure. This preserves life safety for responders and resources, and helps prevent the fire from spreading to neighboring properties. Ventilation alone wouldn’t control the fire and could worsen conditions; an interior attack isn’t feasible in a lost structure; simply evacuating and waiting leaves the fire to grow and threaten surroundings.