The application of sunscreen in the development of construction industry sunscreen is not only widely used in agricultural planting industry, but also in housing construction. In recent years, with the acceleration of urbanization in China, the scale of buildings has been expanded year by year. However, due to the relative lag of building energy conservation, the current situation of building energy conservation is still far from the strict energy conservation requirements of the state. Walking through the city, you can see all kinds of buildings without sunshade. Especially in summer, under the scorching sun, the sunlight radiates and transfers heat through the glass, which seriously affects the comfort of indoor environment, greatly increases the load and energy consumption of air conditioning, and greatly wastes the power resources.

According to relevant data, the design standard of thermal environment and energy conservation of civil buildings in Jiangsu Province clearly stipulates that: the south, East and West windows shall be equipped with sunshade facilities; the sunshade rate shall reach 80%. Therefore, if we want to save energy in modern buildings, we must deal with the problem of daylighting and sunshade at the same time. The principle of sunshade is: when the light hits the window glass, the infrared ray is absorbed by the glass, and the radiant energy is converted into heat energy to make the window hot. The external sunshade facilities block the sun before it hits the indoor objects, which can effectively block the heat radiation outside.