Tags: Energy Star, environmental protection agency
FINAL DRAFT 7 F KEYS FREE
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This article is from Door and Window Market magazine's free e-newsletter that covers the latest door and window industry news.
FINAL DRAFT 7 F KEYS WINDOWS
Barring any egregious errors, new requirements will take effect a year later, officials say, in fall 2023.įull final draft requirements can be found HERE.Įquivalent Energy Prescriptive Requirements for Windows Climate Zone EPA will then share a final summary letter, after which specifications are expected to be published as early as September 2022. Under new circumstances, should NFRC change its requirements, EPA will retain the currently prescribed five- and 10-year cycles, officials say.įollowing today’s unveiling of a final draft for Version 7.0, a three-week period of comment ensues, in which manufacturers can provide a last round of feedback.
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While Version 7.0 requirements will align with NFRC’s current protocols, calling for U-factor performance evaluation every five years and air leakage testing every 10 years, those requirements will hereafter be prescribed directly by Energy Star. The final version also delinks Energy Star requirements for air leakage and U-factor testing from current National Fenestration Rating Council (NFRC) requirements. Going forward, EPA will now perform its own data gathering, the same way it does for other product sectors, officials say, but will now allow manufacturers to provide shipment data through an independent trade association for aggregation. To collect this information, officials say in the past EPA has relied on a third-party agency to shield manufacturers from having to provide info directly to a government agency.
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As part of Energy Star program requirements, manufacturers are required to report the number of Energy Star-rated products sold each year. U-factor requirements for the same doors in the Northern and North-Central zones remain at 0.25, as proposed in Draft 2.Īs part of the final draft, EPA has also settled on changing the way it gathers shipment data for doors and windows from manufacturers. Companies that persist in using “poor thermally performing frames,” won’t be able to get by on glass upgrades alone, an official suggests but will need to adopt frames with additional insulating features, such as an increased number of air chambers or foam filling.Īfter backing away from the idea for adding separate specifications for sliding patio doors and swing-style doors (positioned in Draft 1), program officials settled on one set of requirements for sliding doors and swing doors with a half-lite or more of glass, raising the U-factor requirements for the Southern and South-Central zones in the final draft to 0.28. At the same time, the updated 0.25 requirement represents a significant improvement over Energy Star Version 6, which calls for a 0.30 U-factor rating in the same climate zone. With this change, EPA officials say they’re acknowledging the originally proposed 0.24 requirement was “a tough U-factor to get to with two panes of glass.” Typically, products meeting around a 0.28 U-factor rating will need only to add a room-side (surface four), low-E coating to reach the 0.25 mark, an EPA official tells. The same prescriptive approach found in drafts one and two for windows in the Northern climate zone remains in the final draft.įollowing industry feedback from Draft 2, U-factor requirements for the North-Central zone were raised from 0.24 to 0.25, with a solar heat gain coefficient (SHGC) requirement of 0.40. At the same time, officials are standing by their decision to forego a typical nine-month period for deployment after final approval, instead providing an additional three months (a year total) for manufacturers to deploy products. Changes include a slight adjustment to U-factor requirements in the North-Central climate zone for windows and updated U-factor requirements for doors in the Southern and South-Central regions. Environmental Protection Agency (EPA) took another step toward deployment of Version 7.0 today, releasing a final draft with minor updates over its Draft 2 proposal. The race will soon begin for manufacturers seeking to earn or keep Energy Star certifications for door and window products.