Nita! Husband says thanks so much for the information. Dragged Himself away from his worktable to read the description you found, and he is impressed with your research abilities!
He is impressed with the overall structure of the roof, and likes the way the "doughnut" ring at the top of the structure is held down by the weight of the scoreboards, etc....
Hopefully the engineers will post to this, and offer their opinions, as they are the true experts in analyzing this kind of information. The only point of weakness that DH can see is the possibility of the "hypalon" being blown off. If it did, then the insulation would be exposed, and possibly blown off, then the steel roof deck would be vulnerable.
But, remember, an architect is totally dependant on engineers, who are the real experts on structural stability... and some engineers are a whole lot better than others, as is true with architects...
Sounds like everyone will be hanging from the chandelliere.
Tell your husband "Thanks!" for looking at the info.
I have to be gone a few hours. Someone please try to remember to ping me if some engineers make some comments!