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
| Nov 3, 2014
IIT names winners of inaugural Mies Crown Hall Americas Prize
Herzog & de Meuron's iconic 1111 Lincoln Road parking garage in Miami Beach, Fla., is one of two winners of the $50,000 architectural prize.
| Nov 3, 2014
Cairo's ultra-green mixed-use development will be topped with flowing solar canopy
The solar canopy will shade green rooftop terraces and sky villas atop the nine-story structure.
| Nov 2, 2014
Top 10 LEED lessons learned from a green building veteran
M+W Group's David Gibney offers his top lessons learned from coordinating dozens of large LEED projects during the past 13 years.
| Oct 31, 2014
Dubai plans world’s next tallest towers
Emaar Properties has unveiled plans for a new project containing two towers that will top the charts in height, making them the world’s tallest towers once completed.
| Oct 30, 2014
CannonDesign releases guide for specifying flooring in healthcare settings
The new report, "Flooring Applications in Healthcare Settings," compares and contrasts different flooring types in the context of parameters such as health and safety impact, design and operational issues, environmental considerations, economics, and product options.
| Oct 30, 2014
Perkins Eastman and Lee, Burkhart, Liu to merge practices
The merger will significantly build upon the established practices—particularly healthcare—of both firms and diversify their combined expertise, particularly on the West Coast.
| Oct 29, 2014
Better guidance for appraising green buildings is steadily emerging
The Appraisal Foundation is striving to improve appraisers’ understanding of green valuation.
| Oct 29, 2014
Increasing number of design projects meeting carbon reduction targets, says AIA report
Of the 2,464 projects accounted for in AIA's 2030 Commitment 2013 Progress Report, 401 are meeting the 60% carbon reduction target—a 200% increase from 2012.
Sponsored | | Oct 29, 2014
What’s the difference between your building’s coating chalking and fading?
While the reasons for chalk and fade are different, both occurrences are something to watch for. SPONSORED CONTENT
Sponsored | | Oct 29, 2014
Historic Washington elementary school incorporates modular design
More and more architects and designers are leveraging modern modular building techniques for expansion projects planned on historical sites. SPONSORED CONTENT