Creating a larger patio by overlaying pavers on a concrete pad?
Already have a crappy 8’x6’ or so concrete patio pad that was part of a spec house build. It’s snugged right up to a sliding glass patio door. I’d like to extend that “patio” out into the yard to make say, a 13’x13’ paver patio with pavers overlaying the existing concrete pad and transitioning smoothly out into the yard. Of course, the challenge is maintaining that “smooth transition” in the pavers between the edge of the pad and the non-overlay area.
The pad is graded to drain, and is also under an overhang roof meaning it gets little to no direct rain/snow. I would simply demo the pad, but one corner of it is the footing for a post that holds up the aforementioned overhang.
But still, I want to design in some safeguards to keep any runoff from water that manages to seep under the overlay pavers. What precautions should be designed in at the edge of the pad where water would runoff?
Or is this just a really bad idea to mix overlay and non-overlay pavers and expect them to remain relatively smooth?