How to Choose Replacement Windows in Chicago

How to Choose Replacement Windows in Chicago

When purchasing replacement windows in Chicago, opt for energy efficient.

Chicago's climate dictates that windows contain primarily heating qualities. The city's average low temperature is 14.3 degrees Fahrenheit, and its average high is 83.5 degrees Fahrenheit.

U-Factor of Replacement Windows in Chicago

Because of the extremes of the Chicago climate, Chicago windows should have a certain U-factor, which is a heat conductivity measure. For replacement windows in Chicago to be the most energy efficient and provide the best cost savings, they need a U-factor of less than or equal to 0.30.

Chicago Windows with a High Solar Heat Gain Coefficient

If you do not need to worry about cooling your home, then choose windows with a high solar heat gain coefficient (SHGC), which is a measure of the solar energy that a window transmits, of between 0.30 and 0.60. This SHGC range helps winter solar heat gains to offset part of the need for heating energy. If you need air conditioning and have little or no shading, select windows with an SHGC of less than 0.40.

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Enhancing Energy Efficiency with Replacement Windows in Chicago

Different window glazings, coatings, and fills can enhance energy efficiency. For instance, the Chicago windows that may result in the least expensive energy costs have a U-factor of less than or equal to 0.20 and an SHGC between 0.26 and 0.40. In addition, these windows have a triple glazing (three sheets of glass separated by two air gaps), a low-emissivity coating with high solar gain (a thin coating on the glass between the air spaces), argon gas fill (gas placed between the glass), and thermally improved, non-metal frames.

If you swap your Chicago home's windows for ones with qualifying ENERGY STAR ratings, you may be eligible for a federal tax credit equal to 10 percent of the cost, up to $200 per window. Before buying, find out exactly what criteria are required for the credit.