What are the natural conditions related to raisin drying house in Xinjiang and sloping roof house in Jiangnan water town? Why?

Xinjiang raisin baking room: it is the place where raisins are made. It is hot and rainy in Xinjiang. If you put the grapes directly in the sun, they will get sunburned, but the temperature in the drying room is relatively low, and the grapes are dried in the shade and will not be damaged.

Inclined roof of Jiangnan water town: Jiangnan is in the south. It is warm as spring all year round, with humid air and abundant precipitation. A sloping roof can discharge precipitation more quickly without affecting the roof.