Tile – How to install tile over area with no drywall

tile

enter image description herePlumbers made a mistake by placing a mixer vertically when it was supposed to be horizontal. I had to remove 3 tiles and some cement board in order to the mixer. Now what everything has been positioned properly, there is no base to install the tile onto. What can I use to create a base for tile installation? Foam?

Best Answer

Patch the hole with cement board. This may require removing addition tiles and cutting more cement board to reveal half a stud on the right and most of a stud on the left but it will be a better solution then a quick fix. Once you have the cement board make sure adequate waterproofing, per regulation where you live, is also done. Then re-tile.