The Metrodome in Minneapolis, Minn., collapsed over the weekend under the weight of heavy snow. The NFL was forced to move a Vikings-Giants football game to Detroit tonight.
The roof was produced and installed by Amherst-based Birdair, which will consult on repairs. Birdair works on roofing systems for stadiums and arenas around the world.
Fox cameras captured the dramatic collapse on video. It happened early Sunday morning, and no one was hurt.
-- Matt Glynn