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
Mixed-Use | Jun 12, 2023
Goettsch Partners completes its largest China project to date: a mixed-used, five-tower complex
Chicago-based global architecture firm Goettsch Partners (GP) recently announced the completion of its largest project in China to date: the China Resources Qianhai Center, a mixed-use complex in the Qianhai district of Shenzhen. Developed by CR Land, the project includes five towers totaling almost 472,000 square meters (4.6 million sf).
Engineers | Jun 12, 2023
Stantec to acquire Environmental Systems Design
Stantec, a global leader in sustainable design and engineering, has signed an agreement to acquire Environmental Systems Design, Inc. (ESD), a 270-person engineering firm headquartered in Chicago. Founded in 1967, ESD has built a reputation for excellence and innovation in high-performance design with a roster of industry-leading clients. The terms of the transaction are not disclosed.
University Buildings | Jun 9, 2023
Cornell’s new information science building will foster dynamic exchange of ideas and quiet, focused research
Construction recently began on Cornell University’s new 135,000-sf building for the Cornell Ann S. Bowers College of Computing and Information Science (Cornell Bowers CIS). The structure will bring together the departments of Computer Science, Information Science, and Statistics and Data Science for the first time in one complex.
Museums | Jun 6, 2023
New wing of Natural History Museums of Los Angeles to be a destination and portal
NHM Commons, a new wing and community hub under construction at The Natural History Museums (NHM) of Los Angeles County, was designed to be both a destination and a portal into the building and to the surrounding grounds.
Performing Arts Centers | Jun 6, 2023
Mumbai, India’s new Nita Mukesh Ambani Cultural Centre has three performing arts venues
In Mumbai, India, the recently completed Nita Mukesh Ambani Cultural Centre (NMACC) will showcase music, theater, and fine arts from India and from across the globe. Atlanta’s TVS Design served as the principal architect and interior designer of both the cultural center and the larger, adjacent Jio World Centre.
Architects | Jun 6, 2023
Taking storytelling to a new level in building design, with Gensler's Bob Weis and Andy Cohen
Bob Weis, formerly the head of Disney Imagineering, was recently hired by Gensler as its Global Immersive Experience Design Leader. He joins the firm's co-CEO Andy Cohen to discuss how Gensler will focus on storytelling to connect people to its projects.
Codes and Standards | Jun 6, 2023
California’s new power grid modernization plan furthers ambitious climate goals
California’s new $7.3 billion grid modernization plan is a crucial step in furthering its ambitious climate goals. The board of governors for the California Independent System Operator (CAISO), the state’s grid operator, recently approved a strategy to build thousands of miles of new high-voltage transmission lines.
Mixed-Use | Jun 6, 2023
Public-private partnerships crucial to central business district revitalization
Central Business Districts are under pressure to keep themselves relevant as they face competition from new, vibrant mixed-use neighborhoods emerging across the world’s largest cities.
Multifamily Housing | Jun 6, 2023
Minnesota expected to adopt building code that would cut energy use by 80%
Minnesota Gov. Tim Walz is expected to soon sign a bill that would change the state’s commercial building code so that new structures would use 80% less energy when compared to a 2004 baseline standard. The legislation aims for full implementation of the new code by 2036.
Healthcare Facilities | Jun 5, 2023
Modernizing mental health care in emergency departments: Improving patient outcomes
In today’s mental health crisis, there is a widespread shortage of beds to handle certain populations. Patients may languish in the ED for hours or days before they can be linked to an appropriate inpatient program.