Ductal® Archistructure solution facilitated the production of large thin panels and random openings that would have been impossible to fabricate with reinforced concrete. The mineral texture of Ductal® also facilitated the harmonization of the museum extension with the concrete shell and the Parc du Héron heritage site. Its new façade is made up of perforated panels 5.5 m wide, 3 m to 8 m high and 7 to 9 cm thick covering 185 m².