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
MFPRO+ New Projects | Oct 30, 2024
BIG’s One High Line finally reaches completion in New York City’s West Chelsea neighborhood
One High Line, a luxury residential project spanning a full city block in New York’s West Chelsea neighborhood, reached completion this summer following years of delays related to investor lawsuits.
Urban Planning | Oct 30, 2024
Bridging the gap: How early architect involvement can revolutionize a city’s capital improvement plans
Capital Improvement Plans (CIPs) typically span three to five years and outline future city projects and their costs. While they set the stage, the design and construction of these projects often extend beyond the CIP window, leading to a disconnect between the initial budget and evolving project scope. This can result in financial shortfalls, forcing cities to cut back on critical project features.
MFPRO+ New Projects | Oct 30, 2024
Luxury waterfront tower in Brooklyn features East River and Manhattan skyline views
Leasing recently began for The Dupont, a 41-story luxury rental property along the Brooklyn, N.Y., waterfront. Located within the 22-acre Greenpoint Landing, where it overlooks the newly constructed Newtown Barge Park, the high-rise features East River and Manhattan skyline views along with 20,000 sf of indoor and outdoor communal space.
Libraries | Oct 30, 2024
Reasons to reinvent the Midcentury academic library
DLR Group's Interior Design Leader Gretchen Holy, Assoc. IIDA, shares the idea that a designer's responsibility to embrace a library’s history, respect its past, and create an environment that will serve student populations for the next 100 years.
Resiliency | Oct 29, 2024
Climate change degrades buildings slowly but steadily
While natural disasters such as hurricanes and wildfires can destroy buildings in minutes, other factors exacerbated by climate change degrade buildings more slowly but still cause costly damage.
Office Buildings | Oct 29, 2024
Editorial call for Office Building project case studies
BD+C editors are looking to feature a roundup of office building projects for 2024, including office-to-residential conversions. Deadline for submission: December 6, 2024.
Healthcare Facilities | Oct 28, 2024
New surgical tower is largest addition to UNC Health campus in Chapel Hill
Construction on UNC Health’s North Carolina Surgical Hospital, the largest addition to the Chapel Hill campus since it was built in 1952, was recently completed. The seven-story, 375,000-sf structure houses 26 operating rooms, four of which are hybrid size to accommodate additional equipment and technology for newly developed procedures.
Multifamily Housing | Oct 28, 2024
A case for mid-rise: How multifamily housing can reshape our cities
Often referred to as “five-over-ones,” the mid-rise apartment type is typically comprised of five stories of apartments on top of a concrete “podium” of ground-floor retail. The main criticism of the “five-over-one” is that they are often too predictable.
Sports and Recreational Facilities | Oct 24, 2024
Stadium renovation plans unveiled for Boston’s National Women’s Soccer League
A city-owned 75-year-old stadium in Boston’s historic Franklin Park will be renovated for a new National Women’s Soccer League team. The park, designed by Fredrick Law Olmsted in the 1880s, is the home of White Stadium, which was built in 1949 and has since fallen into disrepair.
Laboratories | Oct 23, 2024
From sterile to stimulating: The rise of community-centric life sciences campuses
To distinguish their life sciences campuses, developers are partnering with architectural and design firms to reimagine life sciences facilities as vibrant, welcoming destinations. By emphasizing four key elements—wellness, collaboration, biophilic design, and community integration—they are setting their properties apart.
