EPA Publishes Final Specifications for Energy Star 7.0

The Environmental Protection Agency (EPA) published final specifications for Energy Star 7.0, which are necessary to keep the program’s sticker on door and window products.

Under new Version 7.0 criteria, windows in the Northern climate zone must offer U-factor ratings of less than or equal to 0.22 and solar heat gain coefficient (SHGC) ratings of greater than or equal to 0.17. In the North Central, windows must offer U-factor ratings of less than or equal to 0.25 and SHGC of less than or equal to 0.40.

Windows used in the South-Central zone must include U-factor ratings of less than or equal to 0.28 and SHGC ratings of less than or equal to 0.23. In the Southern region, they must offer U-factor ratings of less than or equal to 0.32 and SHGC ratings of less than or equal to 0.23.

The final draft of Version 7.0 elicited feedback from 21 companies, organizations and industry experts, including requests that the implementation date for new criteria be moved back in order to provide manufacturers with additional time to issue in new and improved products.

“The window and door industry is going through one of the more difficult times in our history. Supply chains have broken, inflation is raging, and demand is unstable,” wrote industry expert and president of Global Fenestration Advisors Ray Garries in comments provided to program officials. “With these payback concerns and the huge investment
that must be made to products and machinery, the program adjustments must not start until December 2024.”

Similar feedback provided by door and window manufacturers failed to persuade EPA officials to deviate from implementing an Oct. 23, 2023, deadline. Officials say they felt it was important to maintain consistency throughout the Energy Star program, by keeping implementation for doors, windows and skylights in sync with other product sectors.

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