Double hung windows have two window sashes that open for a variety of ventilation options, and the sashes tilt in for easy cleaning.
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Low E3/ERS combines the energy efficient assets and UV protection of Low E3 with Low E3/ERS. This is an inside surface coating that immediately reflects escaping heat back into the space. As a result this increases energy efficiency and your overall comfort!
Energy efficiency is important to you, and Low E2 glass is an easy means of boosting your home’s thermal efficiency all year. Low E2 reflects heat back to the source. Basically this means that heat from the summer sun is reflected back outdoors and in the winter heating is kept inside where it should be. Low E2 also blocks up to 84% of UV rays which helps to reduce the fading effects of the sun on your carpet and furniture.
Low E3 glass provides elevated performance for high sun areas in your home or business. This top of the line glass is formulated to reject heat from the sun, but at the same time let light in. With Low E3, light and visibility from the windows are maximized, while up to 95% of damaging UV rays are blocked.
Double hung windows feature two window sashes that both open for multiple ventilation options and easy window use. Lifetime Windows & Siding is Denver’s most trusted windows and siding installer. We guarantee your double hung windows will last two lifetimes.