Low E Window Coatings

Low e argon gas windows.

Low e window coatings.

Low e low e4 glass most people can enjoy optimal energy performance and comfort with low e low e4 glass. Loe 180 the standard low emissivity coating helps keep the warmth inside your home and reduces harmful effects of uv. Then you just determine which flame that is and that indicates what surface the low e coating is applied to. There are three common applications of low e coatings for residential windows.

Low e meaning low emissivity is an extremely thin layer of metallic particles or more commonly several layers applied to the glass that in simple terms allows the glass to act like a sieve. The following are used to measure the effectiveness of glass with low e coatings. By comparison low e glass coatings can have an emittance as low as 0 04. Low e coatings were developed to minimize the amount of ultraviolet and infrared light that passes through glass without compromising the amount of visible light that s transmitted.

Not all low e coatings are the same. Recommended for north facing windows. Solar control low e coatings are manufactured using the magnetron sputtering. Solar control low e coatings soft coat.

The passive low e coatings are manufactured using the pyrolytic process which. The low e coating is usually placed on one of the inside glass pane surfaces of the insulating unit. Solar heat gain coefficient is the fraction of incident. Low emittance low e is a coating that increases a window or door s ability to diminish heat transfer thus saving heating and cooling costs.

Window manufacturers product information may not list emittance ratings. Low e glass includes a microscopic transparent coating that reflects infrared energy or heat. Hold a lit match or a pen light up in front of the window. In addition to energy savings low e also effectively reduces the amount of transmitted ultraviolet light which can damage carpets fabrics and drapes.

Long wavelengths or heat are filtered out while short wavelengths the visible light spectrum are allowed to pass through. Visible light transmittance is a measure of how much light passes through a window. Low e glass reflects heat in the summer and helps keep heat inside in the winter making this a good choice in climates where both heating and cooling costs are a concern. Homeowners can test for the low e coating in a window by doing the following.

If one of the flames looks slightly clearer and is a different color or hue from the other three that indicates a low e coating. Such glazing would emit only 4 of the energy possible at its temperature and thus reflect 96 of the incident long wave infrared radiation. U value is the rating given to a window based on how much heat loss it allows.