With the development of the greening technology and the increasing demand of the ecological city, the form of the wall greening is more and more, and the ways and methods are more and more advanced and diversified. This is because the wall greening is very important to the city.
Beautifying the environment, returning to nature, saving energy and environmental protection, making the building indoor warm in summer and cool in summer, creating a healthy and natural living environment, improving the urban heat island effect, reducing the urban drainage load, and reducing the noise and noise and so on.
The test results of wall greening and building energy saving show that the outer surface of the green building (dark grey exterior wall paint) can reach the highest temperature of 50, and the outer wall temperature of the greening of the building is up to 27, and the wall surface of the building is 27, especially the west wall. In shaded places, the intensity of light is only one to one percent of the direct sunlight. Thick branches like a thick blanket can reduce the radiation intensity of the sun, and also reduce the temperature. The wall temperature of plants usually can be reduced by 2 to 7 degrees, and the relative humidity of the air after the wall is covered can be relative humidity. Increase by 10-20% in hot summer, which greatly helps people eliminate fatigue. The indoor air temperature of buildings with wall greening is about 3 ~ 5 C higher than that of buildings without wall greening, and the cooling effect is obvious.