The Metrodome Roof

The metrodome roof 2020.
The metrodome roof. The metrodome s air supported roof was designed by the inventor of air supported structures david h. That was before the new stadium offictally opened. An air supported structure supported by positive air pressure it required 250 000 ft min 120 m s of air to keep it inflated. The first collapse of the teflon and fiberglass fabric dome roof at the metrodome occurred in november 1981 after 10 inches of heavy snow fell.
Geiger through his new york based geiger berger associates and manufactured and installed by birdair structures. The dome s roof once against deflated and tore due to snow in the spring of 1983 postponing a minnesota twins game. Then in april 1986 the metrodome roof tore but didn t deflate due to high winds which delayed a twins game against the california angels.