Winners of the 2010 North American Copper in Architecture Awards

This late Victorian/German Renaissance Revival building, designed by Henry Koch and built in 1895, required an extensive renovation to preserve it as a historic structure. The project entailed restoring, reproducing, and replacing original copper decorative elements, including elements that were missing. Architect: Engberg Anderson Architects, Milwaukee; Sheet Metal Contractor: Heather & Little, Markham, Ontario

As part of the full-scale exterior restoration of the Old City Hall, designed by architect E.J. Lennox, the copper roof and many smaller architectural details were replaced. New 20-ounce copper sheet was laid in a batten-seam pattern over the roof's main areas and numerous dormers, and four bronze replicas of original stone gargoyles also were created and placed. Architect: The Ventin Group Architects, Toronto; Sheet Metal Contractor: Heather & Little, Markham, Ontario

Restoring this Neoclassical courthouse, designed by J.W. Golucke, entailed creating replicas of its extensive copper elements. The exterior walls and ceiling, clock dome roof, and cupola were recreated out of 20-ounce copper and reinstalled in a manner that exactly replicates the original architectural detailing. The existing copper gutters—all 1,580 feet—were cleaned of 100-plus years of buildup and dirt and then treated to restore their aged appearance. Architect: Lord, Aeck, & Sargent Architecture, Atlanta; Sheet Metal Contractor: Steinrock Roofing & Sheet Metal, Louisville, Ky.

To restore the official residence and working place of Canada's Head of State, the original copper roofs and architectural details were replaced. A new 16,000-square-foot, 16-ounce copper roof was laid in a batten-seam pattern, and existing copper gutters were replaced with 2,100-square-feet of new custom gutters along with a brass snow fence. Architect: Robertson Martin Architects, Ottawa; Sheet Metal Contractor: Flynn Canada, Mississauga, Ontario

After waiting 150 years to replace a spire that had been destroyed in a fire in 1861, along with the rest of the original church structure, the parishioners finally completed the church restoration in March 2010 with the addition of a Neo-Gothic copper spire. The substructure of the spire's ornate archways, torch finials, and cross are clad in 20-ounce copper sheet, and the cross is gilded. Architect: Glenn Keyes Architects, Charleston; Sheet Metal Contractor: Copper Exclusive, Midvale, Utah; General Contractor: Hightower Construction, Charleston.

Copper wall and roof cladding complement the modern art contained within this private gallery and studio and offer a softer counterpoint to the concrete, glass, and stainless steel employed elsewhere within the structure. The low-maintenance copper elements also perform well in the project's corrosive coastal environment. Architect: Bohlin Cywinski Jackson, Seattle; Associate Architect: Garduque Architects, Honolulu, Hawaii; Copper Manufacturer/Installer: A. Zahner Co., Kansas City, Mo.

This 10,000-square-foot house incorporates a wide array of copper architectural elements, including diamond-shaped roof shingles; exterior crown moldings, soffits, and fascia; gutters and ornamental downspouts; 700 snow hooks; a double-pipe snow guard system; parapets and finials; and a chimney crown. Architect: Mark Christian Design, Holladay; Sheet Metal Contractor: Copper Exclusive, Midvale, Utah.

Three sides of this hall of technological learning and development are wrapped in a 22,000-square-foot panel screen of naturally weathering, perforated copper. Acting as the primary aesthetic expression of the facility's cleanroom block, the copper panel's varying perforations allow daylight penetration and airflow, while the wall itself provides shading and reflects the sun from the building's south elevation. Nighttime backlighting sets off the copper panels. Architect of Record: M W Zander U.S. Operations, Chicago; Design Architect: Bohlin Cywinski Jackson, Philadelphia; General Contractor: Whiting-Turner Co., Atlanta; Sheet Metal Contractor: LinEl Signature, Mooresville, Ind.; Copper Manufacturer: Luvata Buffalo, Buffalo, N.Y.

Low-maintenance, recycled-content copper panels form the exterior cladding for this flexible community library and create a warm color palette that complements its residential setting. Approximately 315 copper panels joined with standing seams wrap the volumes containing the library's upper-level reading rooms and administrative spaces. Architect: Davis Brody Bond Aedas, New York; General Contractor: Forrester Construction Co., Rockville, Md.; Sheet Metal Contractor: CHU Contracting, Chantilly, Va.

This 65,000-square-foot performing arts center uses copious amounts of copper on its roofs and exterior walls to create a striking visual impression. The building's rotunda, fly tower, and auditorium roofs are topped with copper standing-seam panels and incorporate a concealed copper gutter system. The tower walls and parapet cap flashings also are copper. Architect: Page & Steele / IBI Group Architects, Toronto; Sheet Metal Contractor: Semple Gooder Roofing Corp., Toronto.

A combination of custom patinated copper elements, field rock walls, and wood ties this modernist, mountain-view house to its spare natural surroundings. Interlocking oxidized copper shingles form the exterior cladding, and the roofs are sheathed with site-assembled, standing-seam copper panels that were hand-sanded and treated with potash to achieve a dark patina. Bright copper exterior lighting offsets the dark cladding. Architect: Selldorf Architects, Vail, Colo.; General Contractor: George Shaeffer Construction, Vail; Sheet Metal Contractor: Plath Construction, Eagle, Colo.

Sited adjacent to a converted railroad track that now serves as an urban hiking trail, the five three-level townhouses in this project are visually tied to their rugged environment with a combination of vertically corrugated copper cladding, milsap stone, and ipe wood screens. Each of the materials will change naturally over time. Architect: Ron Wommack Architect, Dallas; Sheet Metal Contractor: Beach Street Metal, Dallas; General Contractor: Steve McCombs, Dallas.

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