Backdraft

crazy!

Just prior to the blowout, look at where the structure face would be. It looks like a wall collapses and causes that blowout.

fuck !!
in this moment :all right
the next moment damn nd booom!!
i´m a german fire fighter and we watching your videos for learning ...
damn...

i just watched this in my fire science class 2day and my teacher said it was backdraft becouse of the added oxygen but the smoke doesnt ignite flashover is where everything gets heated to its ignition point and everything ignites in flame yes including the smoke ignites as well dont if i am any help or not but i tried

The reason I say this is because a backdraft will occur in a pressurized situation. The building breathing like it is in the video makes me lean toward backdraft. In a flashover there is sufficient oxygen in a room full of gas. I think that there were two floors invloved. I thing the bottom floor may have been free burning and the top floor pressurized.