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Modern Steel Construction May 2011 : Page 44

Merit award—Less than $15 Million MONTECITO RESIDENCE, MONTECITO, CaLIF. L ocated in the hills above montecito, Calif., the resi-dence was designed to take advantage of the site’s prominent features, including majestic oak trees and large boulders. The house is divided into two wings. a public wing includes living, dining and kitchen areas and opens up to the main outdoor dining and lounging areas. The second, more intimate wing contains bedrooms, bath-rooms and a library, all of which open up to small outdoor courtyards and terraces. The property also includes a lap pool and an existing guest house. The most striking feature of the house is its expression of exposed structural steel frames and insulated metal panels. Continuing the architect’s ongoing steel residential design in-vestigation, initiated in the 1970s, the montecito Residence is the fourth completed iteration in an ongoing research proj-ect that has been tested for the past seven years in a design research studio in a renowned Los angeles-based school of architecture. The intention behind the design strategy is tec-tonic design research that creatively envisions a flexible pro-totype for mass-produced housing using steel construction and standardized off-the-shelf industrial components. Because structural steel is manufactured primarily from scrap metal it is inherently a “green” material. after being fabricated offsite, the steel frame can be rapidly erected and does not generate the typical amount of construction waste caused by wood frame construction. The design ad-vances concepts of adaptive space while creating a “kit of parts” that can be assembled into 20-ft modules as an alternative to the manufactured buildings mitigating the unpredictable link of manufactured units to serviced land. Contrary to most steel-framed buildings—where the steel is ultimately concealed from view—this building was designed so all its steel connections are exposed and vis-ible in the final product. Great care was required from the entire team, including architect, structural engineer and the fabricators who carefully crafted a final product. The steel wide-flange columns were designed by the structural engineer as cantilevered posts, fixed below grade by con-crete grade beams in two directions, allowing the exposed connections between columns and beams to be elegantly welded as moment frames. One of the clients’ desires was that their residence would be designed to take full advantage of the indoor-outdoor living made possible by the California coast’s mild climate. Structural steel is particularly well suited to allow for a maximum amount of glazed openings, from large ex-panses of fixed glass to operable glazed “garage” doors and sliding doors. another important factor in choosing materials for this residence, located in a fire-prone area, is steel’s inherent non-combustible nature. Designed specifically without air-conditioning, the house is cooled by cross-ventilation. Large operable sec-tional glass doors, sliding doors and windows can be opened and closed to quickly adjust to the climate condi-tions and the occupants’ comfort. In addition, the house’s radiant heating system is fed by solar collector panels. Other sustainable features include highly efficient boilers, photovoltaic panels and an Energy-Star rated “cool” roof. “ This home showcases the greatest advantage of steel design: openness and floor plan flexibility. ” —Duff Zimmerman 44 MODERN STEEL CONSTRUCTION may 2011

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