Why do firefighters break windows and cut holes in roofs when the fire is inside a building? It seems that they are causing more damage than the fire.

Building fires create a tremendous amount of heat and smoke. In many instances, firefighters must remove this heat and smoke before they can get close enough to extinguish the fire. Heat and smoke rise, so cutting a hole in the roof and breaking out windows in strategic locations allows the smoke to vent upwards, allowing cool air to enter the structure from below. 


Most fatalities are caused by breathing the smoke and not the flames. This strategy is a lifesaving technique for any occupants. It also improves visibility and lowers heat conditions for the firefighters inside, allowing them to quickly and safely extinguish the fire. Remember, heat and smoke cause damage too, so ventilation will reduce overall damage to a building and contents.

Show All Answers

1. Why do I see fire engines or ambulance units go through intersections with their red lights flashing, and then turn them off? Are they just in a hurry to go somewhere?
2. Why do firefighters break windows and cut holes in roofs when the fire is inside a building? It seems that they are causing more damage than the fire.
3. If I were trapped in a burning building, would firefighters be able to rescue me?
4. When I see an emergency vehicle approaching while I am driving, should I always pull over to the right and stop?
5. Where can I get my blood pressure checked?
6. Can we schedule a fire engine presentation or station tour?
7. How are members of the Fire Department hired?
8. Why do so many fire apparatus respond to simple incidents?