Tour Alto is the latest addition to La Defénse and thanks to its unique façade it’s already an icon. A project done in strict cooperation by the Italian, the French and the Spanish entities of our Group, in a joint effort that has led to an amazing result!
The tower rises from a base of 600 m² that expands gradually as it reaches its maximum height, to arrive at 1,800 m² on the top platform: the surface area of the floors grows parallel with the building’s height. Its unusual flared shape required specific technological solutions, the edge beam on each floor was moved outwards by 12 cm, and with it, the façade was also moved.
The project also features 21,400 m² of glass: the apparent fluidity of the tower and its innovative architectural design have required customized solutions, resulting in a unique building façade – the only one of its kind in France. It is a double skin façade that provides insulation and ventilation, thus generating better performing and more comfortable work environments. The functional aspect complements the aesthetic aspect: the building is clad in 3,700 scales in glass and steel, in 1,700 different types. Architectural skins have become indispensable not only in promoting sustainable urban development, but also in transforming cities into more aesthetically pleasant places.
Discover more IGS coverage of this project HERE
Video courtesy of Permasteelisa Group