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
K-12 Schools | Aug 29, 2024
Designing for dyslexia: How architecture can address neurodiversity in K-12 schools
Architects play a critical role in designing school environments that support students with learning differences, particularly dyslexia, by enhancing social and emotional competence and physical comfort. Effective design principles not only benefit students with dyslexia but also improve the learning experience for all students and faculty. This article explores how key design strategies at the campus, classroom, and individual levels can foster confidence, comfort, and resilience, thereby optimizing educational outcomes for students with dyslexia and other learning differences.
Museums | Aug 29, 2024
Bjarke Ingels' Suzhou Museum of Contemporary Art conceived as village of 12 pavilions
The 60,000-sm Suzhou Museum of Contemporary Art in Suzhou, Jiangsu, China recently topped out. Designed by Bjarke Ingels Group (BIG), the museum is conceived as a village of 12 pavilions, offering a modern interpretation of the elements that have defined the city’s urbanism, architecture, and landscape for centuries.
Adaptive Reuse | Aug 28, 2024
Cities in Washington State will offer tax breaks for office-to-residential conversions
A law passed earlier this year by the Washington State Legislature allows developers to defer sales and use taxes if they convert existing structures, including office buildings, into affordable housing.
Industrial Facilities | Aug 28, 2024
UK-based tire company plans to build the first carbon-neutral tire factory in the U.S.
ENSO, a U.K.-based company that makes tires for electric vehicles, has announced plans to build the first carbon-neutral tire factory in the U.S. The $500 million ENSO technology campus will be powered entirely by renewable energy. The first-of-its-kind tire factory aims to be carbon neutral without purchased offsets, using carbon-neutral raw materials and building materials.
Architects | Aug 28, 2024
KTGY acquires residential high-rise specialist GDA Architects
KTGY, an award-winning design firm focused on architecture, interior design, branded environments and urban design, announced that it has acquired GDA Architects, a Dallas-based architectural firm specializing in high rise residential, hospitality and industrial design.
K-12 Schools | Aug 26, 2024
Windows in K-12 classrooms provide opportunities, not distractions
On a knee-jerk level, a window seems like a built-in distraction, guaranteed to promote wandering minds in any classroom or workspace. Yet, a steady stream of studies has found the opposite to be true.
Building Technology | Aug 23, 2024
Top-down construction: Streamlining the building process | BD+C
Learn why top-down construction is becoming popular again for urban projects and how it can benefit your construction process in this comprehensive blog.
Airports | Aug 22, 2024
Portland opens $2 billion mass timber expansion and renovation to its international airport
This month, the Portland International Airport (PDX) main terminal expansion opened to passengers. Designed by ZGF for the Port of Portland, the 1 million-sf project doubles the capacity of PDX and enables the airport to welcome 35 million passengers per year by 2045.
Adaptive Reuse | Aug 22, 2024
6 key fire and life safety considerations for office-to-residential conversions
Office-to-residential conversions may be fraught with fire and life safety challenges, from egress requirements to fire protection system gaps. Here are six important considerations to consider.
Resiliency | Aug 22, 2024
Austin area evacuation center will double as events venue
A new 45,000 sf FEMA-operated evacuation shelter in the Greater Austin metropolitan area will begin construction this fall. The center will be available to house people in the event of a disaster such as a major hurricane and double as an events venue when not needed for emergency shelter.
