The 3 buildings were designed following an outdoor implementation principle within a supporting configuration structure of the pierced wall type. Footbridges link one building to the other.

The A2 building incorporates large enamelled glass fills and hidden sash frames. The façade incorporates movable external sun protection. Building B2 has a double façade on the South, East and West exhibitions. The exterior “skin” is achieved by inclined sunshades designed for optimal management of solar and luminous contributions. A technical passage is arranged between the two facades to allow easy maintenance of the surfaces. 

Elioth undertook a great number of optimization studies which aimed at the HQE certification and also the THPE (High energy performance) label: daylight calculations, orientation optimization, calculation of surface heat factors, static analyses, choice of materials, taking into account the types of occupancy and building maintenance,…