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Uniquely Green City Hall

3Located on Central Avenue in South Los Angeles, the $15 million green neighborhood Council District 9 Neighborhood City Hall project provides forward-looking environmental features to enhance building performance, demonstrate urban development innovations to the public and form a context for expressing compositions that echo the community's jazz history. The Building Program includes 10,000 square feet featuring two major interior functions: administrative field offices for both the council and various city departments serving the neighborhood, and a community meeting room. A landscaped entrance court is beneath eight raised photovoltaic arrays that move during the day to track the sun, shade the space below and signal a dynamic environmental message to the public.

To further its environmental significance, the design establishes a grid of trees and paving pattern extending throughout the site to give a park-like feeling to the project. Planted screens frame the front façade of the offices to recognize the façade treatment of historic "taxpayer unit" development along Central Avenue. Clerestory windows provide natural lighting to the interior while minimizing security concerns for building openings. The design also features a roof garden serving environmental and social needs of the community. The project will apply to the US Green Building Council for LEED Silver rating.

Components of Bossier City, La.-based McElroy Metal's "Greener Roof Solution" were used to help achieve the projects intent to be LEED Silver certified, including approximately 30 squares of 22-gauge, McElroy 16-inch Medallion Lok and 25 squares of flat sheets in Valspar SR Alpine Blue.

Hoffman Estates, Ill.-based CETCO's StrongSeal SA Waterproofing Underlayment derived from recycled tires was used on the roofs and walls in addition to McElroy's Medallion Lok Standing Seam panels. Both contributed towards LEED recycled content credits MR 4.2 and MR 4.2. The metal panels were coated with the Valspar SR Formula in Alpine Blue, meeting the LEED SRI requirement for credit SS 7.2 Reduction of Heat Island Effect. The unusual stacked double cylinder shape of the building with butterfly roof and waterspout design required the expert craftsmanship of sheet metal experts Cimco Sheet Metal of Santa Fe Springs, Calif.

The building opened in January 2010, and has furthered the goal of reinvigorating Central Avenue-setting the tone for the community's future.

Council District 9 Neighborhood City Hall, Los Angeles

Architect: Paul Murdock Architects, Beverly Hills, Calif.

General Contractor: CTP Construction Co. Inc., Anaheim, Calif.

Sheet Metal Contractor: Cimco Sheet Metal, Santa Fe Springs, Calif.

Roofing Underlayment: CETCO, Hoffman Estates, Ill., www.cetco.com/bmg

Metal Manufacturer: McElroy Metal, Bossier City, La., www.mcelroymetal.com