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
Giants 400 | Nov 3, 2017
Top 25 military architecture firms
Jacobs, Michael Baker Intl., and HDR top BD+C’s ranking of the nation’s largest military sector architecture and AE firms, as reported in the 2017 Giants 300 Report.
Engineers | Nov 2, 2017
CannonDesign expands its presence in Colorado with BWG acquisition
Future mergers could be in the offing.
Giants 400 | Nov 1, 2017
Top 35 industrial architecture firms
Jacobs, Stantec, and BRPH top BD+C’s ranking of the nation’s largest industrial sector architecture and AE firms, as reported in the 2017 Giants 300 Report.
K-12 Schools | Oct 31, 2017
Exploring empathy in architecture: Put yourself in your student’s shoes
People are enigmatic and inherently complex, which can make it difficult to design for a larger population.
Architects | Oct 31, 2017
AIA selects recipients for the 2017 Innovation Awards
The program honors projects that highlight collaboration between design and construction teams to create better process efficiencies and overall costs savings.
Giants 400 | Oct 30, 2017
Top 130 green architecture firms
Gensler, Stantec, and HOK top BD+C’s ranking of the nation’s largest green sector architecture and AE firms, as reported in the 2017 Giants 300 Report.
Architects | Oct 30, 2017
City 2050: What will your city look like in 2050?
What do we think the future will look like 30 years or so from now? And what will City: 2050 be like?
Architects | Oct 25, 2017
Mason & Hanger appoints Ben Lilly as its new president
The firm expects to continue mining growth opportunities with its federal agency clients.
Healthcare Facilities | Oct 25, 2017
Creating child-friendly healthcare spaces: Five goals for success
Children often accompany parents or grandparents in medical settings; what can we do to address their unique needs?
Giants 400 | Oct 24, 2017
Top 160 reconstruction architecture firms
Gensler, Jacobs, and Stantec top BD+C’s ranking of the nation’s largest reconstruction sector architecture and AE firms, as reported in the 2017 Giants 300 Report.
