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
Mixed-Use | Aug 30, 2017
A 50-acre waterfront redevelopment gets under way in Tampa
Nine architects, three interior designers, and nine contractors are involved in this $3 billion project.
AEC Tech | Aug 25, 2017
Software cornucopia: Jacksonville Jaguars’ new practice facility showcases the power of computational design
The project team employed Revit, Rhino, Grasshopper, Kangaroo, and a host of other software applications to design and build this uber-complex sports and entertainment facility.
Multifamily Housing | Aug 24, 2017
Storage units, lounges most popular indoor and outdoor amenities in multifamily developments
Tenants and condo owners crave extra space for their stuff. Most developers are happy to oblige.
Green | Aug 24, 2017
Business case for WELL still developing after first generation office fitouts completed
The costs ranged from 50 cents to $4 per sf, according to a ULI report.
Healthcare Facilities | Aug 24, 2017
7 design elements for creating timeless pediatric health environments
A recently published report by Shepley Bulfinch presents pediatric healthcare environments as “incubators for hospital design innovation.”
BD+C University Course | Aug 23, 2017
AIA course: New steel systems add strength and beauty
Advances in R&D are fostering new forms of structural and aesthetic steel.
Market Data | Aug 23, 2017
Architecture Billings Index growth moderates
“The July figures show the continuation of healthy trends in the construction sector of our economy,” said AIA Chief Economist, Kermit Baker.
Architects | Aug 21, 2017
AIA: Architectural salaries exceed gains in the broader economy
AIA’s latest compensation report finds average compensation for staff positions up 2.8% from early 2015.
Sports and Recreational Facilities | Aug 18, 2017
Video: Designing the ideal rugby stadium
HOK invited four world-class rugby players into its London studio to discuss what they would like to see in the rugby stadiums of the future.
Architects | Aug 16, 2017
Staffelbach joins DLR Group
The firm will be merging operations immediately with full integration and the name change to DLR Group| Staffelbach effective October 2.
