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
Giants 400 | Nov 14, 2023
Top 90 Justice Facility Architecture Firms for 2023
DLR Group, Stantec, HDR, HOK, and Elevatus Architecture top BD+C's ranking of the nation's largest justice facility architecture and architecture engineering (AE) firms for 2023, as reported in the 2023 Giants 400 Report. Note: This ranking includes revenue from all public safety/justice facilities buildings work, including correctional facilities, fire stations, jails, police stations, and prisons.
Giants 400 | Nov 13, 2023
Top 65 Airport Facility Architecture Firms for 2023
Gensler, Corgan, PGAL, and HOK top BD+C's ranking of the nation's largest airport terminal and airport facilities architecture and architecture engineering (AE) firms for 2023, as reported in the 2023 Giants 400 Report.
Data Centers | Nov 13, 2023
Data center sector trends for 2023-2024
Demand for more data centers is soaring, but delivery can be stymied by supply delays, manpower shortages, and NIMBYism.
Education Facilities | Nov 9, 2023
Oakland schools’ central kitchen cooks up lessons along with 30,000 meals daily
CAW Architects recently completed a facility for the Oakland, Calif., school district that feeds students and teaches them how to grow, harvest, and cook produce grown onsite. The production kitchen at the Unified School District Central Kitchen, Instructional Farm, and Education Center, (“The Center”) prepares and distributes about 30,000 meals a day for district schools lacking their own kitchens.
Laboratories | Nov 8, 2023
Boston’s FORUM building to support cutting-edge life sciences research and development
Global real estate companies Lendlease and Ivanhoé Cambridge recently announced the topping-out of FORUM, a nine-story, 350,000-sf life science building in Boston. Located in Boston Landing, a 15-acre mixed-use community, the $545 million project will achieve operational net zero carbon upon completion in 2024.
Retail Centers | Nov 7, 2023
Omnichannel experiences, mixed-use development among top retail design trends for 2023-2024
Retailer survival continues to hinge on retail design trends like blending online and in-person shopping and mixing retail with other building types, such as offices and residential.
Giants 400 | Nov 6, 2023
Top 110 Cultural Facility Architecture Firms for 2023
Populous, Gensler, HGA, DLR Group, and Quinn Evans top BD+C's ranking of the nation's largest cultural facilities sector architecture and architecture engineering (AE) firms for 2023, as reported in the 2023 Giants 400 Report. Note: This ranking includes revenue from all cultural building sectors, including concert venues, art galleries, museums, performing arts centers, and public libraries.
Giants 400 | Nov 6, 2023
Top 170 Government Building Architecture Firms for 2023
Page Southerland Page, Gensler, Stantec, HOK, and Skidmore, Owings & Merrill top BD+C's ranking of the nation's largest government building sector architecture and architecture engineering (AE) firms for 2023, as reported in the 2023 Giants 400 Report. Note: This ranking includes revenue from all government building sectors, including federal, state, local, military, and Veterans Affairs (VA) buildings.
Designers | Nov 6, 2023
DLR Group opens office in Nashville, Tenn.
DLR Group is expanding its presence in the Southeast with the opening of an office in downtown Nashville, Tenn.—a collaborative effort led by DLR Group Principals Matthew Gulsvig, AIA, LEED AP, and Randall Coy.
Healthcare Facilities | Nov 3, 2023
The University of Chicago Medicine is building its city’s first freestanding cancer center with inpatient and outpatient services
The University of Chicago Medicine (UChicago Medicine) is building Chicago’s first freestanding cancer center with inpatient and outpatient services. Aiming to bridge longstanding health disparities on Chicago’s South Side, the $815 million project will consolidate care and about 200 team members currently spread across at least five buildings. The new facility, which broke ground in September, is expected to open to patients in spring 2027.
