World Trade Center Construction Flaws Revisited

[GWHH]

Since, the 10 year anniversary of 9/11 is coming up. Lets examine the building flaws that caused the WTC to collapse so fast. Here the three big point I can see. Lets hear your views and see what you ideas and solution are to these problems.

Failure to install sprinklers when the building was built. They were retro fitted a few years latter to it. Which comprised the fire integrity of the building.

Using the new system of spray on fire proofing. They got a waiver to change the current rules (when it was built and that a story in itself) and put it on about half as thick as the old rules said. But after 1993 they started to retro fit the building and put in new fire proofing at the old thickness levels. As the building floors become vacant this process was done. The north tower impact area had the new fire proofing and stood longer than the south tower for what its worth.

Failure to make the central core of the building masonry instead of fireproofing dry wall 2-3 inches thick.