Thank you--I thought I recalled it being fabric or plastic when it was built (yes, I was living there at the time), but that was a long time ago and I might be remembering incorrectly.
http://www.superdome.com/piclib/277.jpg
Overall, the Louisiana Superdome has withstood the test of time; it has a surprisingly undated look to it, even as fixed domed stadium construction began to fade in the early 1990s and others having even been closed. The Superdome is built to withstand catastrophes; the roof is built to stand up to 200 MPH wind and even deep flood water wouldn't reach the second level 35 feet from the ground. It has thus been used as an emergency shelter but is not designed for the task; in 1998 during Hurricane Georges problems included looting and supplying 14,000 people with necessities.
