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France is sending 50 truffle-sniffing pigs, Great Britian has 100,000 MRE's containing jellied eels and cold potatoes ready to go, Banglasdesh is sending their most experienced swimming instructors, and Thailand will be contributing hints on how to survive intensely bad smells for an extended period of time.
The Superdome roof is a PVC heat-welded membrane, probably secured by a combination of adhesive and mechanical terminations. It is essentially a giant PVC tarp, and it is likely that the material to which that tarp was fastened is what failed, ripped up by the rather elastic and airtight material which was attached to the substrates. Low bidder's got nothing to do with it. *Any* roof will fail in these extreme conditions, no matter how well designed and applied. Even roofs which are designed to withstand hurricanes do not retain their waterproofing characteristics...they just don't rip the entire support structure out when they fail.
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"To those of you who are wearing ties, I think my dad would appreciate it if you took them off." - Robert Moog
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