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ENERGY STAR Climate Zone Maps & Criteria

United States

ENERGY STAR® is a government-regulated program that was created by the Environmental Protection Agency (EPA), and the U.S. Department of Energy (DOE), to help consumers quickly and easily identify energy saving products. The ENERGY STAR program uses energy values obtained by window and door manufacturers through the National Fenestration Rating Council (NFRC) program. NFRC ratings are based on the energy performance of the total window or door – both glass and frame.

The ENERGY STAR program for the United States divides the nation into four separate climate zones – Northern, North-Central, South-Central, and Southern. The performance criteria that needs to be met in order to be ENERGY STAR compliant in specific climate zones are shown in the charts provided. Note that this information is per criteria that took effect in 2015.

Helpful Links:

*NOTE: Federal tax credits are not available for windows and doors manufactured in 2015.

2015 ENERGY STAR
Qualification Criteria for Windows

**Northern zone windows can meet prescriptive (1st row) or alternative energy performance (2nd & 3rd row) criteria to qualify for ENERGY STAR.

2015 ENERGY STAR
Qualification Criteri
a for Doors

2016 ENERGY STAR
Qualification Criteria for Windows*

*The effective date for the Northern Zone prescriptive and equivalent energy performance criteria for windows is January 1, 2016.  North-Central, South-Central, and Southern criteria will continue to follow 2015 guidelines.

**Northern zone windows can meet prescriptive (1st row) or alternative energy performance (2nd, 3rd, and 4th rows) criteria to qualify for ENERGY STAR.

Canada

Products may comply for Canada's ENERGY STAR program based on these compliance paths: their total U-factor, their Energy Rating (ER), or both. The Energy Rating is based on a product's overall performance based on three criteria: (1) solar heat gain, (2) U-factor, and (3) average air tightness. The higher the ER number, the better the product's thermal performance.

The U-factor and ER criteria for Canada's three climate zones is shown in the charts provided. For more detailed information about their Energy Rating system and Kolbe products that qualify for Canada's ENERGY STAR Program, visit their website.

2015 ENERGY STAR Qualification Criteria for Windows & Sliding Doors in Canada*

*Windows and sliding doors can qualify based on either a combination of the U-factor & a minimum Energy Rating, or just the Energy Rating.

2015 ENERGY STAR Qualification Criteria for Swinging Doors in Canada

Kolbe demonstrates a commitment to providing accurate energy data by having products independently simulated, tested, inspected and listed in the NFRC certification program, and making that data available on our website and window labels.


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