In their first North American project, the global architecture firm gmp has announced a major new project in Montréal leveraging their leadership in sports venues: the reinvention and re-engineering of the controversial and expressive Olympic Stadium created for the 1976 summer games.
 
As gmp has done with other stadium reinventions, including the rewrapped Bernabeu Stadium in Madrid — which debuted this year — and the reconstructed and reroofed 1936 Olympic Stadium in their home city of Berlin, the aging Montreal venue now sports a contemporary, highly efficient construction that reliably allows the stadium space to be used year ’round.

Montréal’s controversial Olympic Stadium has endured numerous setbacks over the years, including fires, labor strikes, and prematurely failed materials. The 55,000-seat venue’s novel structure comprises ring-shaped concrete cantilever beams with a central inclined tower, from which the roof was suspended. The original design by French architect Roger Taillibert included a retractable membrane roof, which was problematic and soon replaced by a fixed membrane roof in the late 1980s. Then, in 1999, a nonretractable roof of polytetrafluoroethylene (PTFE)-covered fiberglass resting on a steel cable structure, was retrofitted; by 2018, inspectors had discovered and repaired thousands of perforations in the roof materials.