Low E Window Coatings

Hold a lit match or a pen light up in front of the window.

Low e window coatings.

If all the flames look identical there is no low e coating present. The following are used to measure the effectiveness of glass with low e coatings. Low e glass includes a microscopic transparent coating that reflects infrared energy or heat. Homeowners can test for the low e coating in a window by doing the following.

Solar control low e coatings soft coat. Low e low e4 glass most people can enjoy optimal energy performance and comfort with low e low e4 glass. Long wavelengths or heat are filtered out while short wavelengths the visible light spectrum are allowed to pass through. 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.

Types of low e coatings passive low e coatings hard coat. Loe 180 the standard low emissivity coating helps keep the warmth inside your home and reduces harmful effects of uv. 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. 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. The passive low e coatings are manufactured using the pyrolytic process which. U value is the rating given to a window based on how much heat loss it allows.

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. The low e coating is usually placed on one of the inside glass pane surfaces of the insulating unit. Then you just determine which flame that is and that indicates what surface the low e coating is applied to. Recommended for north facing windows.

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. Solar heat gain coefficient is the fraction of incident. Most companies that manufacture vinyl windows offer loe 180 included in the price of the window.

Visible light transmittance is a measure of how much light passes through a window. Window manufacturers product information may not list emittance ratings. Solar control low e coatings are manufactured using the magnetron sputtering.