What is the function of the shadow wall?

Screen wall is also called screen wall. The screen wall is set for blowing air outside the house, and its function is to prevent the strong air outside the house from impacting the house and to preserve the vitality inside.

The shadow wall can make the air flow at the air inlet take an S-shaped route. Because the airflow slows down close to the running speed of human blood, there is little difference between the two, so people will feel comfortable with the smooth blood.

Extended data

The shadow wall can be located inside or outside the door. The former is called the inner shadow wall and the latter is called the outer shadow wall. Shapes are zigzag, splayed, etc. , usually made of bricks, consists of three parts: seat, body and roof. There is a sumeru on the seat. The central area of the wall is called the shadow wall center. Shadow walls in China and Viet Nam are usually made of square bricks with an oblique angle of 45 degrees. A simple screen wall can be without any decoration, but it must also be polished and sewn neatly. Luxury screen walls are usually decorated with many brick carvings with auspicious patterns.

The brick carvings on the screen wall mainly have four corners in the center and the central area, and there are also mixed owls and Julian at the intersection with the roof. The top surface of the central square brick is engraved with the central flower, and the brick plaque with the word "birthday" is embedded in the center of the screen wall, or the brick carving with auspicious words is engraved. Some relatively simple screen walls may not have three parts, some have no base, and some have no roof. The simplest is only the wall, and there is no boundary between the outer edge of some walls and the center of the wall. For example, some shadow walls in Ryukyu architecture are just simple stone walls.

Baidu Encyclopedia-Screen Wall (Screen Wall)