[Petronski]

I can’t wrap my mind around “Wal*Mart burning.” How does a massive steel and concrete building “burn?”

[Enterprise]

It can’t because Ms know it all said so.

[null and void]

I didn't say the building was burning, oh picky one....

[lowbridge]

How does a massive steel and concrete building “burn?”

True. MIHOP.

And if the steel has melted, then thats a sure sign that this was a set up because as Rosie the riveter has warned us, fire cannot melt steel.

Maybe Ron Paul was right?

[SoldierDad]

How does a massive steel and concrete building “burn?”

World Trade Center!!

[KC Burke]

In the southwest there are some Wal-Marts that, despite steel columns, have overall roof framing of structural lumber and wood truss-joists. This can only be done in low snow load areas for structural reasons.

I guess I should offer that roof framing wouldn't be a big culprit. Any building can burn quite nicely, due to contents, no matter how fire resistive the framing.

A major conflagration would be more a factor of an automatic fire sprinkler system malfunction than anything else.

Even with modest contents burning, the air gets so hot inside a fire area that floor coverings, paint and items that have low-flame spread ratings still end up contributing to the fire. Eventually the normal non-combustable items loose their structural strength -- voila, World Trade Center.

[ThomasThomas]

They sell steel wool, 9v batteries and plastic lawn furniture. This can be a series problem.