I have a one story concrete block house in Florida and am considering adding a second story to it. I was wondering if anyone has done this and what is involved structurally. My house is about 1500 sq. ft. so if anyone has done this and could give me some kind of financial estimate it would be greatly appreciated. I don't know if this has ever been done by any of Bob's shows but if it has please let me know so I can look it up. Thanks.