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While Leland is eating yogurt, I will call either an architect or an engineer who would be an autocad expert to give me the size of the roof. I would not want to be the source of these measurements. While it is a good exercise to think this through, the point is that a project of this magnitude is also a high risk project. Shift liability to the appropriate experts for something like this. Having a good baseline third party measurement completed on the front end will also help keep roofing bids to be comparable on an apples to apples basis. I would not trust a roofing company to measure a roof like this.

While looking up supporting information for various aspects brought up by this thread, I came across some photos from the contractor who ended up investigating the Superdome roof damage.

http://www.thorntontomasetti.com/pr...estigation

Some side views show a slope of nearly 8/12 where the hole is being worked on. Elsewhere, I was able to visually measure the lowest portion of the dome to be just under 12/12.

 Well here is another dome claim for someone >> http://www.weather.com/outlook/weat...2010-12-12

  Who's gonna climb up there and measure that one?  i noticed when they showed the damaged cover up close it looked shredded sorta like it had flapped in the wind or it was getting rotten . i am guessing they will repair the bad spots only .So it would be a partial repair. The state of Minnesota said they had to figure out how to handle a 6 billion dollar deficit before they could do anything on the dome.

Posted By ChuckDeaton on 13 Dec 2010 10:44 AM
Hard to believe that the Teflon roof on the Metrodome collapsed from the weight of snow .......................................

Now I do NOT know exactly what these roofs are made of, but I grew up around the Pontiac Silverdome and the material is actually soft and the roof staying up has a lot to do with updrafted air through the HVAC system or something similar. They also have some type of flexible coils filled with superheated water to melt any snow or ice buildup and then directed away from the center mass. I am thinking the snow just came on too fast and as the coils melted the snow/ice, the water pooled and well the video takes it from there. Obviously this is a completely different roof system than that of the Superdome(rigid) in New Orleans
 

A good fact to know is that water is heavy, 

  It's held up by air pressure 10 acres of Teflon coated fiberglass 1/32" thick. It is 195 feet from the highest point of the interior ceiling to the playing field. It is the ONLY inflatable roof system left out of 28 other domed stadiums.  

              GOTTA LOVE GOOGLE

  I just read where the commisioner said it sustained more damage than first anticipated. Now I bet they will look at other options. That cover has got to cost

a bundle.