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 12, 2011
Rutgers students offered choice of food and dining facilities
The Livingston Dining Commons at Rutgers University’s Livingston Campus in New Brunswick, N.J., was designed by Biber Partnership, Summit, N.J., to offer three different dining rooms that connect to a central servery.
| Apr 12, 2011
Retail complex enjoys prime Abu Dhabi location
The Galleria at Sowwah Square in Abu Dhabi will be built in a prime location within Sowwah Island that also includes a five-star Four Seasons Hotel, the healthcare facility Cleveland Clinic Abu Dhabi, and nearly two million sf of Class A office space.
| Apr 12, 2011
Luxury New York high rise adjacent to the High Line
Located adjacent to New York City’s High Line Park, 500 West 23rd Street will offer 111 luxury rental apartments when it opens later this year.
| Apr 12, 2011
College of New Jersey facility will teach teachers how to teach
The College of New Jersey broke ground on its 79,000-sf School of Education building in Ewing, N.J.
| Apr 12, 2011
Mental hospital in Boston redeveloped as healthcare complex
An abandoned state mental health facility in Boston’s prestigious Longwood Medical Area is being transformed into the Mass Mental Health Center, a four-building mixed-use complex that includes a mental health day hospital, a clinical and office building, a medical research facility for Brigham and Women’s Hospital, and a residential facility.
| Apr 12, 2011
Miami courthouse design does justice to children and the environment
Suffolk Construction broke ground recently for the Miami-Dade County Children’s Courthouse, a $328 million project the firm has a 30-month contract to complete.
| Apr 12, 2011
Long-awaited San Francisco center is music to jazz organization’s ears
After 28 years, SFJAZZ is getting its first permanent home. The San Francisco-based nonprofit, which is dedicated to advancing the art of jazz through concerts and educational programs, contracted local design firm Mark Cavagnero Associates and general contractor Hathaway Dinwiddie to create a modern performance center in the city’s Hayes Valley neighborhood
| Apr 12, 2011
Entrance pavilion adds subtle style to Natural History Museum of Los Angeles
A $13 million gift from the Otis Booth Foundation is funding a new entrance pavilion at the Natural History Museum of Los Angeles County. CO Architects, Los Angeles, is designing the frameless structure with an energy-efficient curtain wall, vertical suspension rods, and horizontal knife plates to make it as transparent as possible.
| Apr 12, 2011
BIM Grows Up: Separating Hype from Reality in a 3D World
While BIM adoption still lags in both design and construction, some enterprising owners, architects, and contractors are unlocking the potential of this dynamic technology.
| Apr 12, 2011
Metal cladding: Enhancing design with single-skin panels, MCMs, and IMPs
Single-skin metal panels, metal composite panels, and insulated metal panels can add both aesthetic and functional value to your projects, if you use them correctly.
