Aluminet Shade Cloth (2)

ALUMINET works as a thermal blanket. All warm objects become cooler by giving off long wave, infrared (heat) radiation. At night, the warm earth surface cools as it gives off infrared radiation. On clear nights, this radiation is lost into space. On cloudy nights, some of this radiation is reflected back to the earth by the clouds, maintaining a warmer temperature than would occur on a clear night (under otherwise similar conditions). Within the greenhouse, this same process is going on. The plants and floor give off invisible heat radiation at night.