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
Architects | Jan 26, 2017
Alan Greenberger, FAIA, honored with the 2017 AIA Thomas Jefferson Award
The award honors significant contributions to public architecture.
Architects | Jan 24, 2017
Politicians use architectural renderings in bid to sell Chicago’s Thompson Center
The renderings are meant to show the potential of the site located in the heart of the Chicago Loop.
Architects | Jan 23, 2017
Why corporate branded environments matter
A branded environment has the potential to create a long-lasting impression for your intended audiences.
Architects | Jan 19, 2017
Harley Ellis Devereaux merges with Deems Lewis McKinley
The combination is expected to bolster HED’s presence in northern California and the K-12 sector.
Architects | Jan 13, 2017
Best in Architecture: 23 projects win AIA 2017 Institute Honor Awards
The Shigeru Ban-designed Aspen Art Museum and the General Motors Design Auditorium by SmithGroupJJR are among the architecture, interior architecture, and urban design projects to win.
Designers | Jan 13, 2017
The mind’s eye: Five thoughts on cognitive neuroscience and designing spaces
Measuring how the human mind responds to buildings could improve design.
Building Materials | Jan 9, 2017
Architects and researchers are developing new techniques for building in space
As setting foot on Mars becomes a more realistic goal, the search for how to best develop Architecture for the Red Planet is heating up.
Architects | Jan 5, 2017
U.S. architects can now earn licenses to practice Down Under
NCARB finalizes reciprocal agreement with Australia and New Zealand.
Architects | Jan 4, 2017
The making of visible experts: A path for seller-doers in the AEC industry
Exceptional seller-doers have the ability to ask the right questions, and more importantly, listen.
Building Team | Jan 3, 2017
How does your firm’s hit rate stack up to the AEC competition?
If your firm is not converting at least a third of project proposals when competing for new work, it may be time to reassess your marketing tactics and processes.