jb03 said:The other point is that the heat of burning furniture is insufficient to melt steel. False, offices fixtures and fittings can cause fires that can melt steel or cause steel to fail structurally. In Australia, steel needs to be coated or sealed off with fire resistant material (i don't know what American codes require). This does not prevent ultimate failure of the steel, but allows enough time for any building on fire to be evacuated. Ie, fire protection is there to protect people, not the structure or building itself. Offices are deemed to be high risk in relation to burning and fire damage due to the material of construction of the fixtures and fitting plus the high volme of paper that exist in offices. In Australia, office buildings are subject to greater fire control measurs than say an apartment building.
The truthist architects and engineers on the Age video accept that steel can deform under the heat of office fires. They dispute that it will fail to the extent that it offers absolutely zero resistance to building collapse. Note I said deform, not melt. Nothing short of a blast furnace is needed to completely melt steel (or the use of chemical heat). Yet there is evidence of molten steel during the WTC collapses. This point was not covered by the enquiry. An important issue for future building design (let alone any conspiracy theories) that should have been addressed by any inquest.