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
Biophilic Design | May 18, 2022
Horticulturalists conduct research study to understand the value of biophilic design
Benholm Group, horticulturalists that have pioneered the use of plants for interiors over the past 27 years, are collaborating on a research study to understand the value of biophilic design, according to a news release.
Market Data | May 18, 2022
Architecture Billings Index moderates slightly, remains strong
For the fifteenth consecutive month architecture firms reported increasing demand for design services in April, according to a new report today from The American Institute of Architects (AIA).
Building Team | May 18, 2022
Bjarke Ingels-designed KING Toronto releases its final set of luxury penthouses
In April 2020, a penthouse at KING Toronto sold for $16 million, the highest condo sale in Toronto that year or the year after.
Building Team | May 17, 2022
MKA’s Embodied Carbon Action Plan will include reporting on carbon reductions for selected projects
Magnusson Klemencic Associates (MKA) recently released its SE 2050 Embodied Carbon Action Plan (ECAP) for 2022.
University Buildings | May 16, 2022
Yale’s newly renovated Schwarzman Center enriches student campus social life
Robert A.M. Stern Architects (RAMSA) recently unveiled the design of their restoration of the Schwarzman Center at Yale University, which includes dining spaces, a bar, and a food shop.
K-12 Schools | May 16, 2022
Private faculty offices are becoming a thing of the past at all levels of education
Perkins & Will’s recent design projects are using the area to encourage collaboration.
Codes and Standards | May 16, 2022
AIA releases Justice in the Built Environment guide
The American Institute of Architects (AIA) recently published a new supplementary edition of the Guides for Equitable Practice, titled “Justice in the Built Environment.”
K-12 Schools | May 16, 2022
A Quaker high school in Maryland is the first in the U.S. to get WELL Gold certification
Designed by Stantec, a Quaker high school is the first in the US to receive WELL Gold certification, which recognizes a commitment to occupants’ health and well-being.
Building Team | May 13, 2022
Glass penthouses rise above Toronto’s tree line
In midtown Toronto, the nine-story midrise building Leaside Common has released its Penthouse Collection: two-floor penthouses that take inspiration from Philip Johnson’s Glass House in Connecticut.
Market Data | May 12, 2022
Monthly construction input prices increase in April
Construction input prices increased 0.8% in April compared to the previous month, according to an Associated Builders and Contractors analysis of U.S. Bureau of Labor Statistics’ Producer Price Index data released today.
