The impacts also spread jet fuel into the buildings. Not all the fuel was used in the fire ball. In fact, eye witnesses say jet fuel was creating curtains of fire as it poured down from the impact zone. But the jet fuel only started the fires. It was never the NIST's contention that the jet fuel brought down the buildings as conspiracy theorists suggest. Conspiracy theorists use this as a straw man. They say the jet fuel couldn't have bowed the columns and sagged trusses. Just as lighter fluid doesn't cook your meat in a barbeque, the jet fuel didn't sag the trusses or bow the columns. You also can't leave this important factor out either. Conspiracy theorists say the columns couldn't have bowed and the trusses couldn't have sagged because the jet fuel wasn't hot enough and was used up within about 15 minutes of impact. That's like saying your meat didn't cook in your barbeque because the lighter fluid burns too quickly. All the jet fuel did was act as lighter fluid and intensify the fire for about 15 minutes.

The impact brought a 500 mile an hour wind to the impact floors as a wall of debris traveled from one end of the buildings to the other. The jet fuel blast added to the event with more than just a pyrotechnic show. This high wind (debris and blast) blew the debris into the furthest corners of the building. It obviously stripped the ceiling tile system off in an instant. Photographic evidence shows no sign of ceiling tiles on the impact floors. In that same instant the all important "blown on" fire proofing was removed from the trusses and some columns. This could be seen from photographic evidence in the NIST report. The NIST also replicated the fireproofing and conditions during impact and found the fireproofing easily blew off. As with all the NIST tests anyone can replicate them if they doubt the conclusion.