The difference between Feng Shui roofs of ancient buildings, veranda roofs and Xieshan roofs

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The roof of the verandah is also called the "five-ridge roof". As the name suggests, it has five roof ridges. , four slopes, see the Hall of Supreme Harmony

The top of the Xieshan Peak is also called the "Nine Ridge Top". From the appearance, it looks like two triangular gables are "rested" on both ends of the top of the verandah. See the Tiananmen Square

The difference between the roof of the veranda and the top of the mountain:

The roof of the verandah: the roof has four slopes and five ridges. The front and rear slopes intersect to form a transverse ridge. The left and right slopes intersect with the front and rear slopes. Four vertical ridges are formed that extend diagonally from both ends of the main ridge to the four corners of the roof. The eaves are slightly tilted upward. The slopes on all sides are slightly concave. Also known as Si Ading. Before the Tang Dynasty. The main spine is short. Deep slopes on all sides. After the Ming Dynasty, the main ridge became longer.

Xieshan Peak: The roof is a combination of a suspended mountain top and a verandah roof. The upper two-thirds are overhanging mountain tops. The lower third is the roof of the verandah. This forms a shape with four slopes and nine ridges. Each of the nine ridges is a positive ridge. There are four vertical ridges on the upper part. There are four qiang ridges between the four corners and the vertical ridge. (That is, the upper part of the roof with four slopes turns into a vertical triangular wall. There is a main ridge. Four vertical ridges. The four are composed of ridges. So it is also called the nine-ridge top.)

The top of Xieshan Mountain also has a single eaves and Double eaves

Indirect information about Xieshan Mountain can be found in Ming vessels of the Han Dynasty and murals in the grottoes of the Northern Dynasties. The earliest physical building is the main hall of Nanchan Temple in Mount Wutai.

The level of Xieshan Mountain is second only to that of Langdian Mountain. It is composed of one main ridge, four vertical ridges and four forked ridges, so it is called the Nine Ridges Hall. It also has single eaves and double eaves. Among the secondary buildings and residential gardens in the palace, there is also a rolling shed with no main ridge on the top of the mountain.

The top of Xieshan Mountain with double eaves: The top of Xieshan Mountain is also called Jiuji Hall. In addition to the main ridge and vertical ridge, there are four ridges. The front and rear slopes of the main ridge are full slopes, and the left and right slopes are half slopes. The second eaves on the top of the Xieshan Peak with double eaves are basically the same as the second eaves on the top of the verandah. The whole building is magnificent in shape. In terms of level, it is second only to the roof of the double-eaves verandah. Current ancient buildings such as Tian'anmen, Taihe Gate, Baohe Hall, Qianqing Palace, etc. all have this form.

Single eaves Xieshan Mountain: Its shape is like the upper half of double eaves Xieshan Mountain. Most of the side halls are of this type, such as those in the East and West Sixth Palace in the Forbidden City.

The gable on the top of Xieshan Mountain has wind board, which is the focus of decoration.

There are also single eaves and double eaves on the veranda roof.

Double eaves verandah roof: This roof style was the highest level among all palace roofs in the Qing Dynasty. The top of the verandah hall is also called Si'ading. It has five spines and four slopes with "four out of water", and is also called Wujidian. The plan of the palace formed by this kind of roof is rectangular, and the width is greater than the depth. The intersection of the front and rear slopes is the main ridge. There are four vertical ridges on the left and right slopes, which intersect at one end of the main ridge. The roof of the verandah with double eaves is under the roof of the verandah, and there are short eaves. There is a short vertical ridge at each corner, with nine ridges in total. Among the existing ancient buildings, such as Taihe Hall and Changling Jun'en Hall, these are the roofs.

Single eaves verandah roof: Its shape is the upper half of the double eaves verandah roof. It is a standard five-ridged hall with four roofs. The main halls of the annexes in the Forbidden City, such as Tiren Pavilion and Hongyi Pavilion, are among them.