The section work synthesizes both material economy and resource saving research. The light roof stretched between the north and south bleachers spans 64 m span. The transfer of the loads of the cover on the inclined sails of the steps frees the facade of any supporting element.
The volumes cleared under the bleachers house the reception of the public, the toilets and the offices of the club. They also act as an acoustic and thermal buffer between the sports hall and the outside.
The two-level distribution of the program manages the public / sports separation and opens the equipment on each single-storey facade to its steep environment.
Just as they show the equipment through transparencies, the six facades are open on the various districts of Calais that the equipment is intended to reconnect. The geometry of the project also reflects the optimal organization of the stands, which favors the typical cauldron effect of basketball games.
Materiality / The materials are chosen according to the efforts they transmit; steel works mainly in tension and concrete in compression. They are left rough, without dressing of second work but worked finely: the sand-blasted concretes reveal the aggregates whose color echoes the beaches of the waterfront, the beveled edges finely refer to the work of Auguste Perret.
The details of the joints and the junctions are left visible and leaves legible the way of the efforts of the cover in the basement.