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Saturday, April 4, 2015

Climate Responsive Architecture

Compiled by Pari Syal
Photography: Courtesy Foster & Partners

the undulating roof canopy
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The new Buenos Aires Ciudad Casa de Gobierno, a sustainable new city hall designed by Foster & Partners comes across as a highly flexible building that revitalises the neighbourhood both, socially and environmentally...

Spanning an entire city block in Parque Patricios, the building is a catalyst for the regeneration of the neighbourhood and combines an environmentally efficient design with an innovative, highly flexible internal arrangement of terraced working floors.

huge four-storeyed atrium
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Entry is through a soaring four-storey-high atrium. Full-height glass walls fill the space with natural light and create a visual connection with the adjacent park. The four tiers of workspaces step back to create a sequence of internal terraces. All floors are connected by top-lit circulation routes and punctuated by two large landscaped patios. The activity spaces are open, naturally lit and visible, ensuring good communication between departments and promoting a sense of community.
 
generous floor plates
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The generous floor plates are based on an eight-metre grid, which allows for a wide variety of layouts – the building was originally commissioned as the headquarters for Banco Ciudad, and the inherent flexibility of its design has enabled a seamless transition into government offices. Further facilities include a cafĂ© and a 300-seat wood-panelled auditorium, which can be used for events by the local neighbourhood.

provision for offices and cafe and auditorium
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Externally, the building is characterised by its flowing roof canopy, which is supported by pillars and extends in a deep overhang to shade the entrance plaza and facades. Inside, the concrete barrel vaulted roof is textured and exposed. The use of industrial materials reinforces the formerly artisan character of Parque Patricios, while the thermal mass of the concrete soffits, combined with chilled beams, help to naturally regulate the temperature and keep the offices cool. It will be the first public building in Argentina to achieve the environmental award for sustainability of LEED Silver standard. Every aspect of the scheme was designed in response to the local climate, including the composition of each facade – the eastern and western elevations are shaded by a screen of louvres, which rise along the full height of the building.

undulating roof canopy
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Says Lord Foster, “Sustainability relates very strongly to local resources and climate, and Buenos Aires Ciudad Casa de Gobierno is a great demonstration of how architecture can work with nature via passive environmental means to naturally reduce energy use. The roof extends like a canopy to provide shade, its flowing concrete structure is both symbolic as a civic building and functional in regulating temperatures. Shading louvres on the east and west protect the interior from direct glare, while courtyards allow sunlight into the heart of the building – in this way, its design is very much a response to place and climate. The project has played a vital role in regenerating this former industrial quarter of the city.”

                                           

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