The main function of this system is sunshade and cooling in summer, allowing the sun diffused into the greenhouse to ensure that crops are protected from bright light burning. Because of blocking the entry of large light, it effectively reduces the accumulation of heat in the greenhouse. 

It can UV-resistant, anti-hail, and reducing its damage to the top of the greenhouse. 

Depending on the type of crop grown, curtains of different shading rates should be chosen to meet the sun's needs for different crops. 

Sunshade and cooling: In the summer, part of the sunlight can be effectively reflected by closing the curtain while also lowering the temperature in the greenhouse by 4℃-6℃