Why did the World Trade Centre's Fire Proofing Fail? 911

Añadido: 2026-06-02

[00:00:00]And this is what happened in the World Trade Center collapse. Two big skyscrapers with steel beam, steel columns, and a steel core. And all very, very strong cuz there were millions and millions of tons of weight on that. But when you crash the 747 airliner into the World Trade Center, the explosion knocked off a lot of the fireproofing.

[00:00:18]So in that area where the explosion took place, it knocked off the fireproofing, the insulation, a lot of it which was asbestos. And then the fire raged in that area.

[00:00:28]And because the steel was now exposed to the fire because the insulation had been knocked off, then that uh that steel was exposed to the heat. And then the heat started to travel up and down the steel columns. And over time, weakened it, started to buckle it. And then due to the huge amount of weight from the top floors, at some point at somewhere around here, it just started to buckle and collapse. And so this whole chunk of the building just squashed the rest of the building. And you can literally see that on the videos, which I'm sure you've probably seen, is that an entire chunk of the building just decided to sink into the building below it.