The Evolution of Traditional Dwellings from South to North

The house is getting shorter and shorter from south to north, which is related to the sun's altitude angle. In China, the greater the Vietnamese solar altitude angle, the higher the houses can be built with the same building spacing. Another thing I think may be related to the size of the wind. The north is closer to the wind source.

Due to precipitation, the slope of the roof gradually leveled off. There is more precipitation in the south, and the steep roof is easy to lead water out of the house, while the north is relatively flat. In Shanxi, the houses there even have sloping roofs, which is called "rich water does not flow outside" and there is less precipitation.

These are my thoughts, and I can't avoid mistakes ~