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Back Draft

Back Draft

In a burning building where you may be trapped, but so far not yet burnt: Do you think it is possible to survive a Back Draft where the fire has burnt out all the oxygen and there is a sudden stillness in the air?

Draft Back

I seriously doubt it, because a Back Draft can be intensely explosive and act as though someone planted a bomb. Fortunately they are not common.

Back Draft History & Civil Business Politics

To come across a back draft U would have to be looking for a way out I assume.
Likely if u were in the room where the back draft situation occured, like u said there would be no oxygen, so u wouldn't survive that. If u were looking for a way out and u opened a oxygen source to the room with the backdraft environment then the explosion would probably make u scream and the air in your lungs would ignite as u inhaled. This would cook your lungs, and you would probably only have 3 minutes before your brain shut down from lack of oxygen. survival at this point would depend on whether or not the fire dept. would be there to pull u out, and hook u up on life support. The best way to survive a backdraft situation would be to not open an oxygen source to the room which is in a back draft condition. Warning signs to watch out for are: Pressurized smoke exiting small openings, aka smoke coming from under the door u'r about to enter. Black smoke becoming dense grey yellow. Confinement and excessive heat, so if the door is too hot. Little or no visible flame, if u can see in. Smoke leaving the building in puffs or at intervals(appearance of breathing), more a warning sign for the fire fighters. Smoke stained windows, again if you can see a window into the room.

My assumption is that backdraft more commonly kills fire fighters, inhabitants would more like die from a separate part of the house fire.
Rollover can be more deadly because backdraft is confined and the seal must be broken for it to ignite.
I will try and explain the illustration of rollover provided in my book. There's a picture of two rooms the living room with the couch on fire, more likely the entire room. There is an adjacent room it's a hall way in the book but we'll say a bed room. The door between the two is left open. The super heated vapors from the living room rise to the top of the room. They flow through the open door and build up above the sleeper. Theres new oxygen in the room for the super heated gasses to mix with. So now u have two parts of the fire tetraheydron oxygen, and fuel source the super heated gasses. Ignition temperature for carbon monoxide is 1128 ferenheit or 609 celcius. When the carbon monoxide above the sleeper hits this temperature it will ignite and a flame will rush from the living room into the smoke and super heated gases above the sleeper. the flames will get to the end of the room and rush down the wall where a bed is usually located.

in my explanation I did not differ from flashover and flame over. I don't entirely understand the difference. So in conclusion sleep with your door closed, if it's open the carbon monoxide will put u to sleep before u even wake up, the gases will build up then ignite and u'll be left in an ashy tomb. After getting into the habit of sleeping with u'r door closed u need an escape route. Get a room with a window, and if u can't get down safely invest the 30 bucks in an emergency rope ladder. Once u are safely out contact the fire department and let them know who else is inside.

If anything didn't make sense or u have any other questions I will do my best to get back to u.