VAL-DE-FONTENAY BANK, PARIS
supplier Sekisui and was formed from recy- cled wood crushed into a pulp in an industrial process that removes the oil content.
“This particular wood does not exist in Europe and it was only after several months of research, in Japan, that I could fully understand all its qualities,” says De
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́mians. “The manufacturer, perhaps because of its insular fragility, is several years ahead of Europe in terms of industrial research. It was a new material for us, but has been used in Japan for more than 30 years.”
The material was mounted onto an extruded aluminium profile, which was bent as a single unit to create the finished 50 mm-deep panels ranging in size from four to seven metres tall. The use of micro-strips of wood helped increase adhesion and improve resistance to deformation over time. The more acute curvature of the roof was created using three separate module types with different radii and tangents designed to ensure perfect continuity between panels.
Climatic Facade
The facade solution was a key element of the project’s environmental performance and “a major and communicative symbol of the project”. The design achieved LEED ‘Gold’ Certification and an excellent rating under the Haute Qualité Environnementale standard for green building in France. The timber blades shield against direct sunlight and reduce associated heat gain. Wood has inherent high levels of sequestered carbon, the product is 100 per cent recyclable and its durability avoids issues related to maintenance and replace- ment. If maintenance or replacement are required, due to damage, the panels can be easily removed.
Large sliding windows in the underlying aluminium facade guarantee optimal daylight for each floor and frame views of the gardens below, enhancing the comfort and wellbeing of employees. In more general terms, the building was designed to minimise energy consumption, exposed concrete soffits help smooth temperature peaks caused by thermal inputs, such as ICT equipment and building occupation. Some doors are motorised to allow for controlled natural ventilation.
The low-impact environmental approach aligns with the concept to create a building that forms part of the landscape of the city, its undulating hills and valleys a new land- mark on the Parisian skyline.
PROJECT DETAILS
Client/end user: Société Générale Architect:
Architectures Anne De Cost consultant:
́mians
Alain Mazet and Associates Structural engineer: VP & Green
Facade engineer: VP & Green
Environmental engineer: Alto Ingénierie
The facade solution was a key element of the project’s environmental performance and “a major and communicative symbol of the project”
LEFT
The timber strips are formed from recycled wood, native to Japan, crushed into a pulp in an indus- trial process that removes the oil content
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All images © Jean-Pierre Porcher
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