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
| Mar 21, 2012
10 common data center surprises
Technologies and best practices provide path for better preparation.
| Mar 21, 2012
ABI remains positive for fourth straight month
Highest spike in inquiries for new projects since 2007.
| Mar 21, 2012
Iowa’s Mercy Medical Center’s new Emergency Department constructed using Lean design
New Emergency Department features a "racetrack" design with a central nurses' station encircled by 19 private patient examination rooms and 2 trauma treatment rooms.
| Mar 21, 2012
Clary, Hendrickson named regional directors for HDR Architecture
New directors will be responsible for expanding and strengthening the firm throughout the central region.
| Mar 20, 2012
FMI releases 2012 first quarter construction outlook
The last time construction put in place was at this level was 2000-2001.
| Mar 20, 2012
Ceco Building Systems names Romans marketing director
Romans joins Ceco Building Systems with over 15 years in marketing and customer service.
| Mar 20, 2012
UT Arlington launches David Dillon Center for Texas Architecture
Symposium about Texas architecture planned for April.
| Mar 20, 2012
Stanford’s Knight Management Center Awarded LEED Platinum
The 360,000-sf facility underscores what is taught in many of the school’s electives such as Environmental Entrepreneurship and Environmental Science for Managers and Policy Makers, as well as in core classes covering sustainability across the functions of business.
| Mar 20, 2012
New office designs at San Diego’s Sunroad Corporate Center
Traditional office space being transformed into a modern work environment, complete with private offices, high-tech conference rooms, a break room, and an art gallery, as well as standard facilities and amenities.
| Mar 19, 2012
Obama’s positioned to out-regulate Bush in second term
Proposed ozone rule would cost $19 billion to $90 billion in 2020, according to the White House.
