Low-E coatings have been developed to minimize the amount of ultraviolet and infrared light that can pass through glass without compromising the amount of visible light that is transmitted. Radiant energy is one of the important ways of heat transfer occurs with windows. Reducing the emissivity of one or more of the window glass surfaces improves a window’s insulating properties.
This is where low emissivity (or low-e glass) coatings come into play. Kaveh Eco Star glass has a microscopically thin, transparent coating that reflects long and short wave infrared energy (or heat). When the interior heat energy tries to escape to the colder outside during the winter, the low-e coating reflects the heat back to the inside, reducing the radiant heat loss through the glass. The reverse happens during the summer.