I just had my granite countertop installed, replacing an old laminate countertop. There was a laminate backsplash that was removed and took some drywall paper off with it (see pics).
My question is what do I need to do to prepare my walls for a tile backsplash? Would slimming mud over the removed backsplash area be sufficient? Also, is it necessary to add a membrane/red guard to the wall for tile?