Cantilever solid deck with no coping brick/stone
I have a question concerning cantilever decks. I know the bond beam has to have a slip joint between it and the deck, but do you have to have an expansion joint around the perimeter of the pool to keep the deck from cracking around the perimeter of the beam? I know I need them about 6ft apart throughout the deck. If have seem where a joint is around some of the the pools and some not. Can the deck crack from one portion sitting on the beam (hard surface) and the other part sitting on dirt? What if you rebar in the deck all the way close the the cantilever edge so its less likely to crack over the beam? Please be nice , my PB cant seem to give straight answers. I just fired him. Looking for some answers before I hire another.
PS I live in GA red clay all the way. What about expansive soil?