The metrodome roof 2020.
The metrodome roof.
The dome consisted of an air supported fiberglass fabric roof and a 340 ton cover for the dome was held in place by air pressure generated fans and steel cables.
The dome s roof once against deflated and tore due to snow in the spring of 1983 postponing a minnesota twins game.
The roof had snow melting ducts to prevent a collapse.
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 metrodome s air supported roof was designed by the inventor of air supported structures david h.
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.