Flat systems reduce the volume of greenhouse that has to be heated. The latter two may allow heating, lighting and watering equipment to remain in place without having to move it. They can be configured flat at the lower cord of the truss or formed into a slope-slope or slope-flat-slope shape to follow the roof of the greenhouse. With this system, equipment and plants cannot be supported from the lower truss cord. #SCREEN SHADE INSTALL#They are easier to install as work is done at a lower height. Gutter to gutter or side to side systems require less material but form a larger bundle in the storage position. One motor can handle up to an acre of screen. A gear motor is needed to power the drive system. The aluminum strips can also save energy in the summer by reflecting the incoming heat back out of the greenhouse reducing fan operation.Īn energy/shade screen is a mechanical system consisting of a drive motor, support cables, energy/shade material and controls. If the material contains some aluminum, the infrared part of the heat within the greenhouse will be reflected back toward the plants reducing heat loss another few percent. Often referred to as energy blankets, they save energy by reducing the heat loss surface area, providing an extra insulation barrier and trapping a layer of dead air on both sides of the screen material. Screens Provide Insulation and Reduce Heat Loss AreaĮnergy/shade screen systems can provide 30 to 50% savings in heating costs. They are most common in gutter-connected greenhouses but can be installed in free-standing and hoophouses. With a payback of two to four years, these systems provide a good return on the money invested. Energy/shade screen systems are one of the most common conservation measures funded by federal and state grant programs.
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