Chicago Metallic Corporation
SpanAir™ Torsion Spring Panels, Infinity™ Perimeter Trim, custom WoodScenes® walnut painted finish
“It looks like real wood and matches the color of the trim in the existing facility,” says E&E’s Adam Easterling. “The all-metal product will hold up better than real wood and still gave them the look they wanted.”
SpanAir Torsion Spring Panels are constructed of recycled aluminum. The metal used in SpanAir Metal Ceiling Systems contains no volatile organic compounds (no VOCs), which mitigates mold and microbial growth. Further enhancing the environmental attributes, the metal may be specified with a high recycled material content and is 100% locally recyclable.
Beyond sustainability, durability and appearance, Easterling emphasizes the importance of acoustic performance. “There’s a lot of external noise on base. Inside the auditorium, they wanted the sound to reverberate off the front and project toward the audience.” To maximize this, he explains that the ceiling panels are specified with different Noise Reduction Coefficients (NRCs) and installed on a slope, pitched toward the back. “Near the stage, the panels are solid to refract the sound. In the middle, they are a standard perforation with an Acoutex™ backer for an NRC of 0.70. In the back of the auditorium, the panels are perforated with an acoustical blanket for an NRC of 0.90.”
Grohovac continues the description: “The panels are each a trapezoidal shape and connect into 30-inch by 5-foot tapered pods. Each pod of panels is installed for increased acoustic performance. The pods are suspended at the proper angle and aligned with equal spacing for a uniform appearance. In between the pods, light fixtures, sprinklers, vents and other necessary equipment are carefully positioned.”
Chicago Metallic’s project manager, Dave Jahn, visited Dannelly Field House as E&E Acoustical and Drywall started installing the ceiling system in March 2012. “E&E has great skills and good ideas, but with Dave on-site right at the beginning, they can bounce questions off of him. Our construction services team brings a technical expert on-site at the earliest stages of installation,” says Grohovac. “Dave offered answers and suggestions about how and where to start, guidelines for critical measurements, and installation tips such as laying out the panels on the floor and assembling the pods at ground level then bringing the assembled pod up to ceiling height.”CMC_AL_Auditorium_06web
Easterling heard the installation went smoothly and easily. “It wasn’t that big of a deal to put up. Each section was organized by shop drawings and showed up exactly as drawn.” By June 2012, the ceiling installation was completed and two months later, the auditorium opened on schedule.
Summarizing the team’s accomplishments, Bear Brothers’ project manager Jon Hilyer says, “Chicago Metallic and E&E offered a cost savings to the government and gave them a very attractive ceiling that met the project’s requirements. They did a good job.”
Grohovac also praises the team effort: “We had a strong partnership and good alliance. All involved were very happy with the end result. It looks phenomenal. Everyone loves it.”
Dannelly Composite Operations and Training Facility’s Auditorium, 4445 Selma Highway, Selma, Alabama 36108
* Owner: Alabama Army and Air National Guard, home of the 187th Fighter Wing; Selma, Ala.; http://www.187fw.ang.af.mil
* Architect and interior designer: Seay-Seay & Litchfield Architects; Montgomery, Ala.; http://www.sslarchitecture.com
* General contractor: Bear Brothers, Inc.; Montgomery, Ala.; http://www.bearbrothers.com
* Installing contractor: E&E Acoustical and Drywall, Inc.; Jemison, Ala.; http://eandeinc.net
* Ceiling system manufacturer: Chicago Metallic Corporation; Chicago; SpanAir™ Torsion Spring Panels, Infinity™ Perimeter Trim, custom WoodScenes® walnut painted finish; www.chicagometallic.com