moved into older house in North Texas with (unfortunately) red painted concrete floor in the sunroom. The plan is to cover the floor with bluestone slate or similar.
Issues: Painted floor and sunken portion of slab (1 of the 4 quadrants is about 1" low)
The previous homeonwer said this happened shortly after he built the house (40+ years ago) so I suspect the shifting is done. :)
Here's my questions for your guru's... with the painted floor, what can i use to level this concrete? Do i need to grind the paint off first? (I used 3500psi pressure washer and was able to remove some paint, but it seems very secure). Can i just rough up the paint a bit and use some thinset to level out? Maybe even concrete leveler and screw down backerboard. I'm at a loss. Any ideas?
thanks in advance for your help.