What's the difference between building roofs in North Africa and southern China? Why?

The architectural styles of many traditional houses in southern China are often adapted to the local natural environment. For example, due to the humid climate in southern China, the roofs of traditional houses are steep and the walls are high for the needs of drainage and ventilation.

Most houses in North Africa have flat roofs for the following reasons:

1, the room is so stuffy that people work and rest on the roof.

2. You can dry things

Step 3 store rainwater

4, make the sand does not pile up (inclined roof is easy to pile up sand)

5. The wind and sand are big, the flat top is firm, and the spire is easily damaged by the headwind.