I'm planning on building a deck but am wondering if it's to code to build on top of a pre-existing concrete slab. The deck will span across the slab, with 8 posts footings being on the slab, and the perimeter footings being buried 4' to the frost line. It will be a floating deck. I've seen countless videos of thus being done, but the code isn't straight forward "don't do this" via /r/DIY http://ift.tt/2s23nJs
