The addition of air curtains in the International Green Construction Code (IgCC), the new comprehensive high performance green building code, promisesĀ 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 āAir Curtains: A Proven Alternative to Vestibule Designā 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.Ā
Related Stories
| Oct 21, 2014
Hartford Hospital plans $150 million expansion for Bone and Joint Institute
The bright-white structures will feature a curvilinear form, mimicking bones and ligament.Ā
| Oct 21, 2014
Norman Foster, Zaha Hadid release plans for resorts in Nanjing and Wuhan, China
Jumeirah Group, a hotel group forming a part of investment group Dubai Holding, has chosen Zaha Hadid and Norman Foster to design two of three of its proposed resorts in Nanjing, Wuhan, and Haikou.
| Oct 21, 2014
Inside LEED v4: The view from the MEP engineering seats
Much of the spirited discussion around LEED v4 has been centered on the Materials & Resources Credit. At least one voice in the wilderness is shouting for greater attention to another huge change in LEED: the shift to ASHRAE 90.1-2010 as the new reference standard for Energy & Atmosphere prerequisites and credits.
| Oct 21, 2014
Perkins Eastman white paper explores state of the senior living industry in the Carolinas
Among the experts interviewed for the white paper, there was a general consensus that the model for continuing-care retirement communities is changing, driven by both the changing consumers and more prevalent global interest on the effects of aging.
| Oct 20, 2014
Singapore Sports Hub claims world's largest free-spanning dome
The retractable roof, which measures a whopping 1,017-feet across, is made from translucent ETFE plastic panels supported with metal rigging that arches over the main pitch.
| Oct 20, 2014
Institute for young innovators breaks ground at the University of Utah
The five-story, 148,000-sf building is designed to function like a student union for entrepreneurs and innovators, with a 20,000-sf āgarageā that will be open for any student to attend events, build prototypes, and launch companies.
| Oct 20, 2014
UK's best new building: Everyman Theatre wins RIBA Stirling Prize 2014
The new Everyman Theatre in Liverpool by Haworth Tompkins has won the coveted RIBA Stirling Prize 2014 for the best building of the year. Now in its 19th year, the RIBA Stirling Prize is the UKās most prestigious architecture prize.Ā
Sponsored | | Oct 19, 2014
The Exploration Tower in Port Canaveral dazzles visitors
With a mission to provide the experience of a lifetime, the Exploration Tower at Port Canaveral, Fla., is designed to inspire, as visitors learn about the history and nature of the port and beyond. SPONSORED CONTENT
Sponsored | | Oct 19, 2014
What to do if your team is in a rut
Another brainstorming session, another slew of tired ideas. How can you push your team to be more creative and bring in new perspectives? SPONSORED CONTENT
| Oct 19, 2014
White House Visitor Center reopens in Washington, D.C.
Designed by SmithGroupJJR and Gallagher & Associates, renovated center shows public its unique role as office, stage, museum, park, and home.