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
| Feb 15, 2012
Englewood Construction announces new projects with Destination Maternity, American Girl
Englewood’s newest project for Wisconsin-based doll retailer American Girl, the company will combine four vacant storefronts into one large 15,000 square-foot retail space for American Girl.
| Feb 14, 2012
Angelo State University opens doors to new recreation center expansion
Designed by SmithGroup, the JJR_Center for Human Performance offers enhanced fitness options, dynamic gathering space.
| Feb 14, 2012
SAIC selected for architectural and engineering design services at Lajes Field, Azores
SAIC’s services will include a broad variety of new construction projects and maintenance and repair projects
| Feb 14, 2012
Skanska promotes Aparicio and hires Leintz in Southern California
Aparicio and Leintz are both based in Skanska’s Los Angeles office.
| Feb 14, 2012
The Jackson Laboratory announces Gilbane Building Co. as program manager for Connecticut facility
Gilbane to manage program for new genomic medicine facility that will create 300 jobs in Connecticut.
| Feb 14, 2012
Thornton Tomasetti names Al Hashimi vice president for its Middle East Operations
Al Hashimi is joining the company to help expand Thornton Tomasetti’s business in the region and support clients locally.
| Feb 13, 2012
WHR Architects renovation of Morristown Memorial Hospital Simon Level 5 awarded LEED Gold
Located in the Simon Building, which serves as the main entrance leading into the Morristown Memorial Hospital campus, the project comprises three patient room wings connected by a centralized nursing station and elevator lobby.
| Feb 13, 2012
Center for Sustainable Building Research launches CommercialWindows.org
Resource aims at reducing commercial operating costs and energy consumption.
| Feb 13, 2012
New medical city unveiled in Abu Dhabi
SOM’s design for the 838-bed, three-million-square foot complex creates a new standard for medical care in the region.
| Feb 10, 2012
Task force addresses questions regarding visually graded Southern Pine lumber
Answers address transition issues, how to obtain similar load-carrying capabilities, and why only some grades and sizes are affected at this time.
