My brother-in-law acquired a huge house that has a stucco exterior. He has asked me to help him do something with it that will be long lasting and good looking. There is a lot of rust showing through and lots of cracks, however it is all very solid. I don't know how to paint it, and if I do, how long will it be before it "bleeds through" again? I have placed vinyl siding on several houses, mostly with prior asbestos siding. He has asked me to side his, but you can't drive nails conventionally into stucco. Plus I would have to build out 25 windows to bring them out to level with the siding. I've heard that elastomeric paints seal the stucco and prevents it from breathing, which causes other problems. What should I do?