The addition of air curtains in the International Green Construction Code (IgCC), the new comprehensive high performance green building code, promises energy and construction cost savings for commercial, industrial and institutional buildings.
Specifying air curtains as energy-saving, cost-cutting alternatives to vestibules in 3,000-square-foot buildings and larger has been a recent trend among consulting engineers and architects. However, many times specifications are blocked by local jurisdictions that have adopted the International Energy Construction Code (IECC), which doesn't yet sight air curtains as vestibule alternatives.
Thus, the newly-enacted IgCC, which is scheduled for March 2012 publishing, now provides an approved overlay of green construction products to the base code IECC, which is overseen by the International Code Council, the Washington-based organization responsible for providing minimum safety, sustainability and affordability building codes and standards.
Recent proposals to the IgCC by the Air Movement and Control Association International (AMCA), Arlington Heights, Ill., helped establish air curtains as a vestibule alternative with the stipulation that they're tested in accordance with ANSI/AMCA Standard 220-05, "Laboratory Methods of Testing Air Curtains for Aerodynamics Performance Ratings."
Also helpful in the code modification effort were recent studies proving air curtains as 10% more energy-efficient than vestibules. The three-month research study “Air Curtains: A Proven Alternative to Vestibule Design” used second-party validation from research/validation consultant, Blue Ridge Numerics, Charlottesville, Va., with certified results from proven computational fluid dynamics (CFD) analysis.
Besides energy savings, vestibules, especially in retail settings, consume anywhere from 25 to 250 square feet of usable retail space and carry construction costs ranging from $3,750 to $37,500, based on an average of $150/square feet construction costs.
Meanwhile air curtain proponents will continue to present energy efficiency data to code committees, in hopes of instituting the vestibule alternative measure into the IECC. The next meeting on the subject is scheduled in January 2013.
Related Stories
| Jun 13, 2017
Accelerate Live! talk: Incubating innovation through R&D and product development, Jonatan Schumacher, Thornton Tomasetti
Thornton Tomasetti’s Jonatan Schumacher presents the firm’s business model for developing, incubating, and delivering cutting-edge tools and solutions for the firm, and the greater AEC market.
| Jun 13, 2017
Accelerate Live! talk: The future of computational design, Ben Juckes, Yazdani Studio of CannonDesign
Yazdani’s Ben Juckes discusses the firm’s tech-centric culture, where scripting has become an every-project occurrence and each designer regularly works with computational tools as part of their basic toolset.
Industry Research | Jun 13, 2017
Gender, racial, and ethnic diversity increases among emerging professionals
For the first time since NCARB began collecting demographics data, gender equity improved along every career stage.
Architects | Jun 7, 2017
Build your very own version of Frank Lloyd Wright’s Guggenheim Museum with this new LEGO set
744 LEGO bricks are used to recreate the famous Wright design, including the 1992 addition.
Multifamily Housing | Jun 7, 2017
Multifamily visionary: The life and work of architect David Baker
For 35 years, architect David Baker has been a spirited voice for affordable housing, in San Francisco and beyond.
Architects | Jun 5, 2017
NCARB launches second alternative path to architect certification
Architects without a professional degree in architecture can now earn NCARB certification through an alternate path.
Architects | Jun 2, 2017
NELSON joins forces with Cope Linder and KA
More growth ahead, as NELSON expects to double its workforce and revenue this year.
![Strong brew: Heineken HQ spurs innovation through interaction [slideshow]](/sites/default/files/styles/list_big/public/OPENER%20Screen%20Shot%202017-06-02%20at%2011.33.34%20AM.png?itok=VNxuazkX "Strong brew: Heineken HQ spurs innovation through interaction [slideshow]")
Office Buildings | Jun 2, 2017
Strong brew: Heineken HQ spurs innovation through interaction [slideshow]
The open plan concept features a Heineken bar and multiple social zones.
| Jun 2, 2017
Accelerate Live! talk: How maker culture is transforming Sasaki’s design practice
Sasaki’s Pablo Savid-Buteler and Brad Prestbo talk about how the firm’s maker initiatives are changing the way Sasaki goes to market, and how they are helping the firm win new business.
| May 30, 2017
Accelerate Live! talk: The ROI of innovation culture, Russ Sykes, SmithGroupJJR
Russ Sykes discusses SmithGroupJJR’s ongoing journey to create a firm culture that ignites innovation and propels change across all levels of the organization.
