Faster burning generally means hotter anyway, with a greater heat release rate being present. Given the fire seemed to be fairly well ventilated for most of its duration, temperatures would have been running 800-1000 degrees for a good while. The roof going would have been a good thing for the walls, allowing the fire to vent to atmosphere, reducing internal temperatures.
Stone buildings mostly suffer from spalling, whereby bits of material burst away from the surface due to the heat, thereby weakening it - another big problem is the cold water jets hitting hot stone walls accelerate this. That said, I was talking to someone familiar with the building yesterday, who reckons the walls are 4+ feet thick, which would suggest they are largely self supporting. Hence the picture showing the walls to be intact.
In the days this building was constructed, cast iron could have been used in floors & the roof, this is a material that responds unpredictably to fire due to wide variations in it's composition. Substantial hardwood joists and rafters tend to perform surprisingly well in fires. Incidentally stone staircases are one of the most dangerous things firefighters have to deal with, once exposed to heat, they can just fail catastrophically with little or no warning.
The building looks savable if the resources are there.
Stone buildings mostly suffer from spalling, whereby bits of material burst away from the surface due to the heat, thereby weakening it - another big problem is the cold water jets hitting hot stone walls accelerate this. That said, I was talking to someone familiar with the building yesterday, who reckons the walls are 4+ feet thick, which would suggest they are largely self supporting. Hence the picture showing the walls to be intact.
In the days this building was constructed, cast iron could have been used in floors & the roof, this is a material that responds unpredictably to fire due to wide variations in it's composition. Substantial hardwood joists and rafters tend to perform surprisingly well in fires. Incidentally stone staircases are one of the most dangerous things firefighters have to deal with, once exposed to heat, they can just fail catastrophically with little or no warning.
The building looks savable if the resources are there.
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