Copper Roof - Brick Church

I drive by this church pretty often. The next time I drive by I'm going to go in and sell the job. They put on the copper roof about 5 years ago and I guess the patina (sp?) is leaking down on to the brick. I think this is what's happening although I'm not sure. See pic. It's like that all the way around the building.

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Is that what is occurring here? And what would take that out of the brick? I need to be pointed in the right direction as to what chemical I should use. Thanks for any suggestions!
 
The EacoChem will take the copper patina stains out of concrete, off of brick and stucco so far that I have tried.
 
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