The roof of the Montreal Olympic Stadium must be replaced to restore the full functionality of this Québec landmark and transform it into a premier event venue. With a total cost of $870 million, this ambitious project includes the installation of a fixed, rigid roof complemented by a transparent glass ring, paying tribute to the vision of its designer, Roger Taillibert. The project involves dismantling the old roof and replacing the technical ring, enhancing the stadium’s capacity to host major events and boosting the tourism and economic appeal of East Montreal.