Are there any special “needs” when tiling over a natural brick fireplace?
Yep, right on the brick. However, I always try to do something 3d with a flat brick fire place instead of just tiling over it and creating a big flat thing. When doing that, you’re going to end up tiling on Hardi or cement board. Special considerations may involve using a ledger board to hold tile in place as it sets up or it might start sliding down the face as you put other courses on top of it, just like when doing a shower wall.
