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
| Apr 25, 2012
Thornton Tomasetti/Fore Solutions provides consulting for Biologics Support Center
Project receives LEED Gold Certification.
| Apr 25, 2012
McCarthy introduces high school students to a career in construction
High school students from the ACE Mentoring Program tour the new CHOC Children’s Patient Tower in Orange, Calif.
| Apr 25, 2012
Missner Group names McCrory VP of property management
McCrory will be responsible for overseeing the financial and operational needs of the firm’s commercial real estate portfolio which includes more than two million square feet of property.
| Apr 25, 2012
Rogers joins Morgan/Harbour as senior project manager
Rogers will also manage the construction process and daily activities as well as act as the interface between the subcontractors, owners, municipalities and regulatory agencies
| Apr 25, 2012
J.C. Anderson selected for 50,000-sf build out at Chicago’s DePaul University
The build-out will consist of the construction of new offices, meeting rooms, video rooms and a state-of-the-art multi-tiered Trading Room.
| Apr 24, 2012
ULI Real Estate Consensus Forecast, projects improvements for the real estate industry through 2014
Survey is based on opinions from 38 of the nation’s leading real estate economists and analysts and suggests a marked increase in commercial real estate activity, with total transaction volume expected to rise from $250 billion in 2012 to $312 billion in 2014.
| Apr 24, 2012
Roofing Supply Group acquired by Clayton, Dubilier & Rice
RSG provides a complete offering of residential and commercial roofing materials and related supplies.
| Apr 24, 2012
McLennan named Ashoka Fellow
McLennan was recognized for his work on the Living Building Challenge.
| Apr 24, 2012
AECOM design and engineering team realizes NASA vision for Sustainability Base
LEED Platinum facility opens at NASA Ames Research Center at California’s Moffett Field.
