"Rene Lopez and Devin Burrell blast dirt off the polyurethane coating the iconic white roof of the Superdome in New Orleans. The job will cost about $130,000 and take roughly a month, partly because the roofers must move slowly. ""You have to constantly be aware of where you're at,"" says project manager Tom Keller. ""If something stupid happens, it's not going to end up pretty."""
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