Windows and Window Treatments and Daylighting

Windows play an important role in the comfort, aesthetics and energy efficiency of a building. Our business fact sheet on windows and window treatments provides more detailed information on selecting energy efficient window systems. As a general guide however, Low-E windows provide excellent thermal insulation against weather extremes and can effectively reduce solar heat gain as well. Window tints and reflective films are efficient at reducing solar gain but can also reduce the visual connection with the outdoors. External window screens are excellent solar control devices for single- or two-story facilities, and architectural features such as awnings and overhangs allow year-round solar control without minimizing visual quality.

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