All windows have three main components: the construction, the glass, and the glass coating. When it comes to energy efficiency, window coatings or window films can help reduce energy and keep costs down. There are many coatings and films to choose from and accompanying benefits, such as reduced heating and cooling costs; homes with window coatings have a reduced energy loss of 30 to 50 percent. Window films and coatings also offer protection from the sun, which shields furnishings and flooring from damage and promotes energy efficiency. Lastly, the glazing reduces glare and offers a higher degree of privacy. The main selection of window coatings is listed in the following chart.

Types of Window Coatings Facts
Low-E coating It reduces non-solar heat flow, providing insulation in the summer and winter. It also reduces the amount of visible sunlight.
Spectrally selective coating It reflects infrared and UV radiation but permits visible light in the home.
Tinting It reduces the amount of sunlight and heat transmitted through the window, but it does not reduce non-solar heat flow.
Reflective coating It reflects sunlight and reduces glare. It is typically used in warmer climates.

There’s a large variety of energy-efficient window technology. No matter which window coating you choose, your home will surely benefit. Read our guide about green window options.

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