What are thermal curtains?


Quick Answer

Thermal curtains are insulated window dressings meant to limit heat loss, or gain, through the traditional thermal weak point of a home's windows. According to HowStuffWorks, thermal curtains are designed to resist the flow of heat into a home on hot days and out of the home on cold days.

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Full Answer

According to HowStuffWorks, thermal curtains are generally installed as part of a comprehensive insulation package. They usually consist of a reflective inner layer, a foam-insulated middle, a vapor barrier to stop the flow of moist air across the boundary and a decorative outer layer that makes them look like standard window treatments.

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