I have an outside (but sheltered) entrance porch. The cement finish was badly stained by some planters and it looks pretty crappy despite considerable efforts with a pressure washer and various chemical treatments.
So I'm starting to think about covering the mess with some decent granite or slate tiles. Any general pointers (do's and don'ts) would be most welcome.
However, I do have one specific concern -- the area in question comprises of 3 concrete slabs with expansion joints. To make matters worse, one of these runs at a
45 degree angle to primary axis of the entrance. One of these joints shows some signs of past movement. I suspect the outside slab settled a little probably soon after construction (about 17 years ago). There's an 1/8th inch crack along the joint. I think it's now stable and has not visibly moved in the 3 years I have owned this house.How should I handle these joints? Initially, I assumed that tiling over the joints would prove fatal and that I would have to tile each slab seperately. The 45 degree joint would make the effect less than wonderful. But maybe it's okay to tile over the joints if I install some kind of isolation layer?
I'm sure that plenty of folks have tried tiling over old concrete pation, pathways etc. What worked, didn't work, and how did you handle the existing joints?