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Old Posted Apr 28, 2017, 4:20 PM
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This Building Saves Energy with a Pioneering Triple-Layer Glass Facade

This Building Saves Energy with a Pioneering Triple-Layer Glass Facade


24 April, 2017



Read More: http://www.archdaily.com/869374/this...r-glass-facade

Quote:
Italian firm Giovanni Vaccarini Architetti has designed the new Headquarters of the Swiss Société Privée de Gérance (SPG), built on Route de Chêne, at the gates of the historical center of Geneva. The work involved the conversion and extension of the existing building, starting with a glass façade that meets the need for solar shading in the interiors while achieving maximum visual permeability.

This façade also improves the acoustic and thermal insulation performance of the building: the double skin allows the envelope to be naturally ventilated and the perimeter ventilation system, combined with the internal forced ventilation system, reduces overall energy consumption. The steel structural elements on the façade, produced by Stahlbau Pichler (a specialist in the sector) produce a modular rhythm and the reflections on the glass shading panels give the project a particular "material weight." --- The façade system is defined by simple rules which, through their repetition, produce a complex design of elements that varies with time and with the light conditions. The architect was inspired by the principles of Kandinsky, identifying the time variable and his capacity to achieve a scanning of the surfaces as capable of defining the compositional rhythm that shifts one’s perception of the architectural volume.

The envelope is comprised of a triple layer of glass (hot chamber) added to which is a fourth layer with a ventilated chamber containing the package of micro-perforated Venetian blinds to regulate the light. Brise-soleil screens made of screen-printed glass are anchored on the outside, giving the façade’s external surface a variable modular pattern in terms of both the panel dimensions and the design on their surface. --- The screen-printed graphic element on the screening panels helps to emphasize the reverberation effect produced, softening the perimeter surface of the building in a sort of evanescent and bright “nebula,” as Giovanni Vaccarini defines it. At night the glass panels are lit by white LED lights that bring the architectural block to life and make it shimmer, in dialogue with the nighttime urban landscape in which it is set.

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