Why do firefighters cut holes in the roof of a building on fire?

This is called "ventilation." There are two basic reasons for ventilating the roof. Dangerous gases and dark smoke accumulate in a burning building making it impossible for firefighters to see. When a hole is made in the roof, smoke and gases escape because heat and smoke rise, this makes it much easier for the firefighters in the building to see. It also reduces the possibilities of backdraft (an explosion of heated gases) and flashover (a quick transition to a fully developed fire).

Another reason is to see how far the fire has progressed. One of the fastest avenues through which fires spread is the attic. Heat and smoke rise into the attic where fire can move quickly. Firefighters may go ahead of the fire on a roof, cut holes to access the attic, and stop the fire from spreading.

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1. How do I get a copy of an incident report?
2. How do I get a burn permit?
3. Can I come to the fire station to have my blood pressure checked?
4. How can I become a Gainesville firefighter?
5. Where can I get a child safety seats inspection done?
6. Will Gainesville Fire Department fill my swimming pool?
7. When an emergency vehicle is approaching with emergency lights and sirens, what should I do?
8. Why do so many fire apparatus respond to simple incidents?
9. Why do fire trucks with full lights and sirens go through red lights at intersections and then, after they go through, they turn off their lights and slow down?
10. Why do firefighters cut holes in the roof of a building on fire?
11. Why do I see firefighters breaking windows when a building is on fire?
12. Why do fire trucks respond to motor vehicle accidents?
13. Why do fire trucks respond to emergency medical calls?
14. What about Fire Extinguisher Classes?
15. How do I schedule a tour of a fire station?
16. What about birthday parties?
17. Want to learn more?