Movable screens are a second cover material that is stretched inside the greenhouse to increase energy. By tidying this curtain during the daytime, the necessary light for the plants can reach the greenhouse.Since the whole heat energy required for heating in temperate climate regions and 70-75% of the heat energy in cold regions are required at night, when the system is well designed and the material is selected well, a lot of heat increase can be achieved. There are 2 types of curtain systems according to the usage mechanisms, these are rope system and push pull systems.
