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 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.
Office Buildings | Nov 2, 2023
Amazon’s second headquarters completes its first buildings: a pair of 22-story towers
Amazon has completed construction of the first two buildings of its second headquarters, located in Arlington, Va. The all-electric structures, featuring low carbon concrete and mass timber, help further the company’s commitment to achieving net zero carbon emissions by 2040 and 100% renewable energy consumption by 2030. Designed by ZGF Architects, the two 22-story buildings are on track to become the largest LEED v4 Platinum buildings in the U.S.
Sustainability | Nov 1, 2023
Researchers create building air leakage detection system using a camera in real time
Researchers at the U.S. Department of Energy’s Oak Ridge National Laboratory have developed a system that uses a camera to detect air leakage from buildings in real time.
Adaptive Reuse | Nov 1, 2023
Biden Administration reveals plan to spur more office-to-residential conversions
The Biden Administration recently announced plans to encourage more office buildings to be converted to residential use. The plan includes using federal money to lend to developers for conversion projects and selling government property that is suitable for conversions.
Sustainability | Nov 1, 2023
Tool identifies financial incentives for decarbonizing heavy industry, transportation projects
Rocky Mountain Institute (RMI) has released a tool to identify financial incentives to help developers, industrial companies, and investors find financial incentives for heavy industry and transport projects.
Contractors | Nov 1, 2023
Nonresidential construction spending increases for the 16th straight month, in September 2023
National nonresidential construction spending increased 0.3% in September, according to an Associated Builders and Contractors analysis of data published today by the U.S. Census Bureau. On a seasonally adjusted annualized basis, nonresidential spending totaled $1.1 trillion.
Sponsored | MFPRO+ Course | Oct 30, 2023
For the Multifamily Sector, Product Innovations Boost Design and Construction Success
This course covers emerging trends in exterior design and products/systems selection in the low- and mid-rise market-rate and luxury multifamily rental market. Topics include facade design, cladding material trends, fenestration trends/innovations, indoor/outdoor connection, and rooftop spaces.
Office Buildings | Oct 30, 2023
Find Your 30: Creating a unique sense of place in the workplace while emphasizing brand identity
Finding Your 30 gives each office a sense of autonomy, and it allows for bigger and broader concepts that emphasize distinctive cultural, historic or other similar attributes.
