Code allowance offers retailers and commercial building owners increased energy savings and reduced construction costs

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.

This course defines the elements of hospital campus access that are essential to promoting the efficient, stress-free movement of patients, staff, family, and visitors. Campus access elements include signage and wayfinding, parking facilities, transportation demand management, shuttle buses, curb access, valet parking management, roadways, and pedestrian walkways.

For glass openings, how big is too big?

Advances in glazing materials and glass building systems offer a seemingly unlimited horizon for not only glass performance, but also for the size and extent of these light, transparent forms. Both for enclosures and for indoor environments, novel products and assemblies allow for more glass and less opaque structure—often in places that previously limited their use.

The Forge in London is deploying industrialized, kit-of-parts construction. Images: Courtesy of Bryden Wood

Architects | May 3, 2022

A U.K.-based design firm flaunts industrialized construction as it expands into U.S.

Bryden Wood wants to set up a network for manufactured components for repeatable building types.

Codes and Standards | May 3, 2022

American Institute of Steel Construction updates environmental product declarations

The American Institute of Steel Construction has released updated environmental product declarations (EPDs) “to help designers and building owners design more environmentally friendly buildings and bridges,” according to an AISC news release.

Education Facilities | May 2, 2022

Texas School for the Deaf campus gateway enhances sense of belonging for deaf community

The recently completed Texas School for the Deaf Administration and Welcome Center and Early Learning Center, at the state’s oldest continuously operating public school, was designed to foster a sense of belonging for the deaf community.

Codes and Standards | May 2, 2022

Developer Hines, engineer MKA develop free embodied carbon reduction guide

Real estate management and investment firm Hines has released the Hines Embodied Carbon Reduction Guide. The free guide, produced with Magnusson Klemencic Associates (MKA), is the result of a two-year effort, relying on MKA’s industry-leading knowledge of carbon accounting and involvement in programs such as the Embodied Carbon in Construction Calculator (EC3) Tool.

Building Team | May 2, 2022

HED and VAI announce merger to bring strategic expertise and drive community impact in Dallas

HED (Harley Ellis Devereaux), a leading national architecture and engineering firm, today announced a merger with award-winning, Dallas-based VAI Architects Incorporated (VAI).