What are the roof styles of ancient buildings in China?

There are several kinds of traditional roofs in China, among which the double-eaved hall and double-eaved sloping hill are the highest, followed by single-eaved hall and single-eaved sloping hill. 1. There is a positive ridge and four inclined ridges on the four slopes of Ding Dian, and the roof is slightly curved, also known as Four Ardins. 2. The rest peak is the combination of the temple roof and the hard roof, that is, the upper part of the four-slope roof becomes a vertical triangular wall. There is a positive ridge, four vertical ridges and four ridges, so it is also called the top of nine ridges. 3. The roof is hung on the top of Shuangpo Mountain, and both sides extend beyond the gables. The roof has one straight ridge and four vertical ridges, which is also called picking the top of the mountain. 4. The hard-topped roof has double slopes, and the gables on both sides are flush with the roof or slightly higher than the roof. 5. The plane of the pyramid roof is round or polygonal, and the top is conical, with no ridge, and several ridges intersect at the top. This type of roof is often used in pavilions and towers. 6. There is no obvious positive ridge on the double slope at the top of the shed, that is, the joint of the front slope and the back slope is built into an arc surface without ridge.