DOE Issues New Energy Star Criteria for Doors and Skylights

May 17, 2008
Government
The Department of Energy has released its preliminary U-factor and SHGC requirements for swinging doors and skylights to qualify for the Energy Star label. The proposed numbers, including new requirements for 2009, 2013 and 2016, are based on DOE’s initial analysis of technical and cost information.

DOE has also set August 13th as the new date for its Stakeholder Meeting in Washington, D.C. The meeting, designed to provide a forum for feedback on the proposed revisions to the window, door and skylight requirements, will be held 8:30 a.m. to 4:00 p.m. at DOE headquarters. The final proposals for new window performance requirements have not been set, but will be issued for review prior to this meeting.

The forum will be held in Room 1E245 of DOE headquarters, 1000 Independence Ave. SW, Washington, D.C. 20585. Pre-registration is required. To register send an email or fax with your full contact information (name, title, organization/company affiliation, e-mail address, telephone, and fax) to Emily Zachery at ezachery@drintl.com or 301/588-0854 (fax) at D&R International by Friday, July 18.

It should also be noted that foreign nationals visiting DOE headquarters are subject to advance security screening procedures, requiring a 30-day advance notice. Foreign nationals that wish to participate in the public meeting, please inform DOE on or before July 11 by contacting Brenda Edwards at 202/586-2945 or brenda.edwards@ee.doe.gov so that the necessary procedures can be completed. They should also register for the meeting with Zachery as specified above.

In its recent announcement focused on doors and skylights, DOE is proposing separate criteria for swinging doors that capture the maximum energy savings possible and are compatible with the dominant two-step manufacturing process and the NFRC door label, explained Richard Karney, Energy Star program manager. The new numbers, shown in Table 1, include the first ever Energy Star requirements specifically targeted at opaque doors.

 Proposed Energy Star Criteria for Swinging Doors

 

 2009

 2013

 2016

 Glazing

 U

 SHGC

 U

 SHGC

 U

 SHGC

 Opaque

 0.21

 NR

 0.19

 NR

0.16

 NR

 1/4- and 1/2-lite

 0.25

 0.30

 0.22

 0.30

 0.20

 0.30

 3/4-lite and fully glazed

 0.32

 0.30

 0.30

 0.30

 0.28

 0.30

 Table 1


The proposed numbers for swinging doors vary based on amount of glazing, it is noted. DOE is not proposing separate criteria for the different climate zones in U.S. for swinging doors, as it does with windows, skylights and sliding doors. Sliding doors continue to be classified in the window category, because their higher level of glazing allows them to achieve criteria levels established for windows.

 Proposed Energy Star Criteria for Skylights

 

 2009

 2013

 2016

 Climate Zone

 U

 SHGC

 U

 SHGC

 U

 SHGC

 5

 ≤ 0.50

 NR

 ≤0.46

 NR

≤ 0.46

 NR

 4

 ≤ 0.55

 ≤ 0.40

 ≤0.50

 ≤ 0.35

 ≤ 0.50

 ≤ 0.35

 3

 ≤ 0.55

 ≤ 0.35

 ≤ 0.55

 ≤ 0.32

 ≤ 0.55

 ≤ 0.32

 2

 ≤ 0.57

 ≤ 0.32

 ≤ 0.55

 ≤ 0.30

 ≤ 0.55

 ≤ 0.30

 1

 ≤ 0.65

 ≤ 0.30

 ≤ 0.60

 ≤ 0.27

 ≤ 0.60

 ≤ 0.27

 Table 2


The new proposed criteria for skylights are presented in Table 2. DOE is seeking input, including supporting technical and cost data from manufacturers in both of these product categories. Individuals can contact Alice Dasek at D&R International via e-mail at adasek@drintl.com or by phone at 301/588-9387 with any input or questions.