Insulated Composite Backup Panels

Emerging, simplified wall construction system outperforms conventional systems
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Sponsored by CENTRIA
Peter J. Arsenault, FAIA, NCARB, LEED AP

Conclusion

ICBPs represent a significant contribution to the evolution of exterior wall design. Their single-component fabrication takes the place of four separate materials which speeds installation, reduces installation errors, and saves time and money. They have been shown to provide superior tightness as a barrier to air, water and moisture since the materials are unaffected by water and penetrations are limited by integrating attachments.

Further, they provide rigid building insulation at specified levels that is located outside of metal studs to meet the thermal requirements of current energy codes and green building standards in all climates. The single source responsibility of all of these critical performance components means that they can reliably meet stringent fire codes by providing evidence of successful and replicable testing. In short, they are worth consideration on any building project that uses metal framing as viable and superior alternative to conventional wall construction.

Ten years ago everyone was skeptical of moving the insulation outboard of the studs. That construction now has widespread acceptance. Similarly, I predict in the next few years that the insulated metal composite back-up wall system will be widely accepted and used as a superior solution. - Michael Gurevich, Consultant, New York City Brickwork Design Center.

Case Studies

Sherwood Middle School
Shrewsbury, Massachusetts

ICBPs being installed at Sherwood Middle School and then covered with a finished metal rainscreen for a very successfully completed exterior wall system.

Photos courtesy of CENTRIA

Building Type: Education, Middle School
Building Owner: Shrewsbury Public School District, Shrewsbury, MA
Architect: Lamoureaux Pagano Assoc. Architects, Worcester, MA
General Contractor: Gilbane Building Company Providence, RI
Dealer/Installer: LYMO Construction Merrimack, NH

The $37-million, 130,000-square-foot Sherwood Middle School will offer a modern learning environment to approximately 1,000 fifth and sixth graders in the Shrewsbury Public School system. Slated to open in November of 2012, the new building takes center stage in a sprawling campus that features the former Sherwood Middle School and the refurbished Oak Middle School. The project offers the latest advancements in K-12 educational facilities, including art and music suites, common rooms, physical education space, a dual-purpose cafetorium, nurses’ quarters and a media center—surrounded by small clusters of general classrooms and special education resource rooms to create an intimate, flexible learning space.

Designed by the experienced architectural team of Lamoureux Pagano Associates Architects, Inc., the Sherwood Middle School project was constructed with the highest principles of sustainable design, on-site optimization and state-of-the-art engineering and technical systems. The architects placed equal focus on quality and value—the crux of Lamoureux Pagano’s building philosophy. “With an educational facility, there is no single factor that determines our design choices, but rather a number of equally important considerations—aesthetics, thermal value, weather resistance, installation time and budget,” said Katie Crockett, AIA, Project Architect at Lamoureux Pagano Associates Architects, Inc. “Each of these aspects played a key role in the Sherwood Middle School project.” Beneath the attractive mixed-medium exterior of Sherwood Middle School is over 66,000 square feet of insulated composite backup panels, boosting the project’s thermal value and providing a second line of defense against the harsh weather conditions of America’s northeast. While the 3-inch panels boast a considerable R-value of 21, building designers were more impressed with the product’s unique, single-component construction, eliminating the need for separate batt or board installation, exterior gypsum, air barriers, vapor retarders and building wraps.

As Principal Architect and President of Lamoureux Pagano Associates Architects, Inc., Mike Pagano, AIA, knows firsthand the value that this system brings to a project. Pagano’s firm was one of the first in the nation to utilize this improved technology.

“As early adopters of insulated composite backup panel technology, we are well aware of the performance enhancements these kinds of products can lend to the building envelope,” Pagano noted. “ICBPs are unique because they offer a single-component design, eliminating the need for multiple installation steps and saving us valuable time and money. In fact, they are one of the reasons why we’re ahead of schedule and under budget.”

 

Cardiovascular Consultants Medical Office Building
Cape Girardeau, Missouri

ICBPs were used behind the masonry rainscreen of this professional medical office building for superior performance and excellent aesthetics.

Photos courtesy of CENTRIA

Building Type: Educational, post-secondary school
Architects: SRG Partnership, Inc.
Contractors: Lease Crutcher Lewis

System used: Insulated composite back-up panels that allowed different rainscreen attachments based on different support systems attached to the supporting clips of the ICBPs.

  • Panel Width: 36” [914mm]
  • Panel Length: 12’ [4m] or 20’ [6m] standard lengths
  • Face and Liner:
    • Face – 29 gauge galvanized steel with clear coat finish
    • Liner – 29 gauge galvanized steel with primer
  • Foam Insulation: Minimum 2.4 PCF
    Urethane modified polyisocyanurate foam. Two inch panels provide an R-14 insulation value while three inch panels provide an R-21 insulation value.

 

Chemeketa Community College Health Science Complex
Salem, Oregon

ICBPs were used behind the combination rainscreens of metal and terra cotta at this new complex on the Community College campus affording excellent value and appearance backed up with superior performance.

Photos courtesy of CENTRIA

Building Type: Educational, post-secondary school
Architects: SRG Partnership, Inc.
Contractors: Lease Crutcher Lewis

System used: Insulated composite back-up panels that allowed different rainscreen attachments based on different support systems attached to the supporting clips of the ICBPs.

  • Panel Width: 36” [914mm]
  • Panel Length: 12’ [4m] or 20’ [6m] standard lengths
  • Face and Liner:
    • Face – 29 gauge galvanized steel with clear coat finish
    • Liner – 29 gauge galvanized steel with primer
  • Foam Insulation: Minimum 2.4 PCF Urethane modified
    polyisocyanurate foam. Two inch panels provide an R-14 insulation value
    while three inch panels provide an R-21 insulation value.

 

Goose Creek Correctional Center, Anchorage, Alaska
Wasilla, Alaska

The location and the use of this building were very demanding requiring high energy performance combined with quick, reliable construction processes.

Photos courtesy of CENTRIA

Building Type: Government, correctional center
Architects: HOK
Contractors: Neeser Construction

The architect of this demanding project wanted to use an insulated wall system that would not sacrifice energy efficiency in the harsh Alaska winter. ICBPs were selected because they eliminated thermal transfer through the steel studs providing much better overall wall U-values. In addition, a pressure equalized rain screen system was designed and installed – a must in extreme climates such as this one.

 

New York Power Authority Niagara Office and Warehouse
Lewiston, New York

ICBPs were used on this large warehouse and office building located in a cold climate. Both metal and masonry façade materials were installed in front of the ICBPs creating the desired appearance and high performance.

Photos courtesy of CENTRIA

Project type: Office and warehouse
Architects: Nelson & Associates Engineering
Contractors: SRL Contracting and Service Company

System used: Insulated composite back-up panels that were combined with the appropriate support system for either metal panel or masonry on the exterior.

  • Panel Width: 32” [813mm]
  • Panel Length: 12’ [4m] or 20’ [6m] standard lengths
  • Face and Liner:
    • Face – 29 gauge galvanized steel with clear coat finish
    • Liner – 29 gauge galvanized steel with primer
    • 26 gauge galvanized steel on face and liner for fire rated walls
  • Foam Insulation: Minimum 2.4 PCF polyisocyanurate foam

 

Peter J. Arsenault, FAIA, NCARB, LEED AP, practices, consults and writes about sustainable design and practice solutions nationwide. www.linkedin.com/in/pjaarch

CENTRIA

CENTRIA innovations in architectural metal wall and roof systems are helping building teams around the world reimagine the building envelope. From inspiration through installation, CENT RIA provides the highest level of expertise including service and support from an elite dealer network based in Pittsburgh (Moon Township, Pennsylvania). Their metal architectural systems are the perfect combination of science and aesthetics, offering advanced thermal and moisture protection, the broadest spectrum of design options, truly integrated components, and superior sustainability. They invite you to explore the limitless possibilities metal provides for your next project and to reimagine metal at www.CENTRIA.com/ReimagineMetal or find them on Facebook.

 

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Originally published in Architectural Record
Originally published in September 2012

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