Concrete patio connection to raised floor system
Project is outside of Charlotte and client wants to use raised floor construction for house, but they also want a concrete patio that is essentially "flush" at the patio doors. I reviewed my libray (Graphic Guide to Frame Construction and the like) and there are plenty of details when grade is much lower or if you have a wood-framed deck, but nothing like this condition.
Crawl space walls likely to the cmu with stone veneer, which further complicates the connection. We could use a combination of 8"/12" block to allow floor framing support, but then you have the exterior wall sitting on the top of cmu rather than the floor joist/sheathing, which just seems out of place. Second option is too waterproof wall/sheathing at connection and just pour patio to it, but then you cannot tie-in the patio so any movement could be an issue.
Conceptual sketch attached.
Any thoughts are appreciated.