I guess limestone is what I mean, not sandstone. Giving it a quick google, they used lime, and their brick/concrete structures did burn down because of that.

I guess limestone is what I mean, not sandstone. Giving it a quick google, they used lime, and their brick/concrete structures did burn down because of that. My tour was a long time ago. >so by your logic we are even dumber I never said the romans were dumb, but the logic of putting dumb words in someone's mouth then sarcastically making fun of those (your) words, is quite dumb indeed. by my logic, we are not dumber, and I already explained that. When we need things like fire retardants, we use many materials that are better than lime. It took burning jet fuel to bring down things we don't want to burn. We learned that lesson from the Chicago Fire. For residential homes, in communities with fire departments, it is not cost effective to have more than basic fire proofing. It would indeed be dumb to build a fireproof single family home for double the cost, when the new owner is going to knock it down and build something else 50 years later. This is why we don't build skyscrapers out of wood though.