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NEWS LAYERED FACADE


Bogle Architects to design Bogotá tower with innovative facade system


Bogle Architects has been appointed to design the facade of a 19-storey residential tower in Bogotá, the capital of Colombia. Working in collaboration with local


architects and consultants, Bogle Architects has developed an “innovative, layered facade system that respects the local context while maximising views across the city.”


The local climate has allowed for a


solution to be developed utilising large glazed panels which are, according to the architects, “further enlivened by contrasting balconies and terraces of varying sizes with greenery, vegetation and panoramic views out over the city.” The building’s design puts the emphasis on lightness and has been developed with a clearly defined range of materials. Responding to the varying internal configuration across the envelope, the depth of the facade layers changes accordingly. In the bedroom, small planters are included plus a large window, while on terraces planters are larger and the glass plane becomes the balustrade. Secondary solid


elements appear when bridging between two adjacent spaces, for example, between social areas and private areas. Bogle Architects said that this layering provides an opportunity to introduce copper panels to the facade; “evocative of the orange glow of Bogotá’s many brick facades.”


Founder of Bogle Architects, Ian Bogle, expressed his enthusiasm for the project: “It has been a fascinating city to visit and I personally look forward to undertaking more projects in this remarkable country.’’


The client, Nicolas Manrique Sanchez,


CEO, Nicolas Manrique Construcción, said: “We appointed Bogle Architects because of their wide experience across the globe. Our goal with this project is to create something special in the Bogotá skyline, and the architects’ approach of innovating materials and construction methods while remaining respectful to the context, is what we expect for a project of this calibre.’’ The building is currently under construc- tion and is expected to be completed in early Spring 2019.


‘Auto-reactive’ facade ventilation saves energy COOLING DOWN


Architects at Technical University of Munich (TUM) have developed a ventila- tion system for double-glazed facades that is claimed to cut energy consump- tion nearly in half with very little techni- cal effort, thanks to “auto-reactive” components. High-rise buildings with glass facades


require large amounts of energy, needing to be cooled for most of the year. It is hoped that the auto-reactive venti-


lation system, developed by the TUM team together with the facade vendor Frener & Reifer, may help contribute to the climate goals agreed on in Paris in 2015. Heating and air-conditioning for buildings worldwide currently accounts


for 40 per cent of total energy consump- tion. Compared to residential buildings, skyscrapers with glass facades are big energy guzzlers. Dr. Philipp Molter, architect at the


TUM Professorship of Architectural Design and Building Envelope, developed the ventilation system, which automati- cally opens when the temperature rises above a certain point and closes once again once the temperature cools off. Paraffin-filled thermal cylinders are


the core element of the Ventflex technol- ogy developed by Molter. The wax-oil mixture inside the cylinder expands when the temperature rises above a certain value. The increase in volume


generates pressure which pushes the cylinder apart like a telescope. When the temperature drops, the cylinders contract once again. "Our approach is fundamentally


different from all previous concepts,” he commented. “For decades, efforts to air condition glazed office and administra- tion buildings have grown continuously more complicated. We on the other hand are developing low-tech solutions that are also highly efficient.” He continued: “Our model is the


human skin: It protects us from overheating by opening up our pores. And that works automatically, we don't even have to think about it.”


5


ADF FEBRUARY 2018


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