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Six steps to use insulating cellular window shades in winter

Learn how cellular shades trap air and how to balance fit, sunlight and ventilation.

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U.S. Department of Energy

Original guidance from U.S. Department of Energy

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The US Department of Energy describes insulating cellular shades as an option to reduce window heat loss. Actual savings vary with climate, window condition and installation.

Your try-it-at-home checklist

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Measure drafty windows and note handles, opening directions and any existing condensation.
Check the honeycomb cell design that traps insulating air and review the product's performance information.
Measure the fit carefully, while leaving window operation, escape routes and safety features unobstructed.
On sunny winter days, consider opening shades to admit solar warmth; close them at night to reduce discomfort near cold glass.
Inspect for trapped moisture behind shades and maintain ventilation. Insulating a window does not itself fix excess humidity.
In homes with children, prefer cordless options or appropriate child-safety features and follow the maker's installation instructions.

Original guidance from U.S. Department of Energy

Your try-it-at-home checklist

Further reading

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