The city of light - A model development in Europe
For the lighting industry stakeholders gathered in Lyon, the vision for Cluster Lumière was a building that would bring together not just businesses and start-ups, but also engineers and scientists, architects, designers and even artists. In short, this would be a unique place where synergies combine – the first of its kind in Europe, which would be both a driving force and example of dynamic innovation.
Groupe Cardinal won the cluster’s call for projects with a convincing site, concept and use proposal that Joris Boyer, the group’s programme manager, summarises as “a site whose design and operation is supported by Cardinal Promotion’s expertise, and which is brought to life and managed by Cardinal Workside.
Location: Lyon, France Year: 2022 Building Type: Mixed - Use Developments (Office buildings, and restaurants) Customer: Groupe CARDINAL Architect: a+ samueldelmas architectes urbanistes Fabricator: CALCAGNI METALLERIE SAS Investor: Groupe CARDINAL Photographer: © Franck Deletang Used systems: Façades WICTEC 60, windows WICLINE 75 evo, sliders WICSLIDE 160 and doors WICSTYLE 65
The WICONA product solutions: performance, aesthetics and adaptability
The WICTEC 60 stick curtain wall system was chosen for the fully glazed base punctuated by varying degrees of transparency. Hoisted to a double height of “7.2 metres without any intermediate fulcrum”, as Ludovic Joannon, the managing director of Calcagni Métallerie is keen to emphasise, this structure accommodates clear and frosted insulated glazed units and shadow boxes. Three large sliding doors made with WICSLIDE 160 frame profiles, one of which is automatic, open to reveal the ground floor spaces. Their anodised aluminium finish perfectly complements the whole sensation of luminosity. On the upper floors, the ribbon windows with painted RAL 7022 Umbra Grey frames run along the four façades.
The WICLINE 75 evo window chosen for this meets the requirements for thermal insulation and light transmission, while also providing high-performance glazing with varying acoustic specifications, depending on the level of exposure (31 to 38 dB). The fixed lights, with their butt joined corners, alternate with concealed-sash windows and five double-height (6 metres high x 7 metres wide) loggias and one single-height loggia, are recessed 2 metres into the façade; each of these is equipped with a single-leaf WICSTYLE 65 door.
USED HYDRO CIRCAL 75R
OF CO2 SAVED
Melting end-of-life aluminium requires only 5 % of the energy that is needed for primary aluminium production, while maintaining the quality and material properties of the aluminium. The project Lumen was realised with Hydro CIRCAL 75R, made from 75% end-of-life aluminium. In total, the use of Hydro CIRCAL in this project saved 49 tonnes of CO2, which represents an important contribution to sustainable construction.
”At 51 meters long and 16 meters wide, “the building meets the urban design specifications defined by Herzog and De Meuron with the Atelier Ruelle”, explains Samuel Delmas. Behind the “simplicity of design and style” lay the challenge of accommodating different uses: reception and hospitality on the ground floor; research and education on the first and second floors; a business hotel with office space and different configurations; function rooms opening onto terraces and a rooftop garden on the top floor. And all while interpreting the issue of light – both natural and artificial – within the technical and creative dimensions of the building.
The answer lies in a structure that combines a central concrete section, a peripheral metal framework and exposed solid cross-laminated timber flooring to form free office spaces “linked by double-height interior voids or terraces”. And finally, the building envelope: between a fully glazed base and the top floor area which is recessed behind a wide screen-printed glass wall, the façades are alternating bands of textured concrete and ribbon windows that create infinite plays of light and shadow, by day and by night. A virtuoso performance by Calcagni Métallerie and WICONA.
“The WICTEC 60 stick system curtain wall was chosen for the fully glazed base punctuated by varying degrees of transparency. Hoisted to a double height of “7.2 metres without any intermediate fulcrum”, as Ludovic Joannon, the managing director of Calcagni Métallerie is keen to emphasise, this structure accommodates clear and frosted insulated glazed units and shadow boxes.”
Ludovic Joannon, managing director Calcagni Métallerie