The roof of the Montreal Olympic Stadium must be replaced to restore the full functionality of this Quebec landmark and transform it into a premier event venue. With an estimated total cost of $870 million, this ambitious project includes the installation of a fixed, rigid roof enhanced with a transparent glass ring, a tribute to the vision of its original architect, Roger Taillibert. The project also involves dismantling the existing roof and replacing the technical ring. Once completed, it will strenghten the Stadium’s ability to host major events and boost the tourism and economic vitality of Montreal's east end.