This is interesting. Concrete housing. Didn't work out so well. The entirety of all Chinese construction is concrete boxes in varying forms. Pure concrete construction without a lot of very thoroughly considered and applied moisture and energy control elements, is a really lousy way to build a residence. I saw a lot of problems. Big. Problems. Not surprisingly, I saw a lot of different waterproofing coatings being sold at storefront shops in every city and village. OTOH, I went through a few early to mid 19th century rammed earth and mud brick houses covered about 1/8" thick with some seemingly very pure lime. This was in low elevation mountains with no freezing, but wildly changing inclement weather. Lotta rain, high winds, etc. In the locations where the tile roof was still functional and other drainage considerations were present, the mud and lime walls were in perfect condition and the interior dirt floor space, while obviously raw and primitive, was dry and was reasonably comfortable. The interiors were also heavily smoke stained from smoking meat and portable heat sources, hung with drying corn, potatoes in corners, etc., but it was probably pretty comfortable for 150-200 years ago.