EsmuPliks t1_je6upes wrote

>To add, they were just designed poorly. These buildings were put up without an air barrier in the insulation envelope.

Meh, we also know now Romans used to mix lumps of calcium into their concrete to make cracks self repair, the "moisture" is by far not the issue. There are plenty of examples across Europe of 400 AD architecture still in good condition, the destroyed ones are usually either explicitly bombed to fuck in one of the hundreds of wars, or just uncared for and destroyed by accelerated erosion as modern infrastructure is built around them. And the occasional earthquake too, when talking about Italy and Greece.