What is the relationship between housing and geography

How is the relationship between traditional dwellings and the geographic environment in sub-Saharan Africa:

1. The savannah climate has high temperatures throughout the year, and there are two distinct "dry and wet" seasons.

2. Local traditional dwellings are easy to build, suitable for nomadic life, thatched shade effect is relatively good; savannah climate, the total amount of precipitation is not large, thatched roofs have significant rain function.