we have an outside toilet which has been removed and we are wanting to change the room in to a washing room. it is a brick out building and the brick has been painted, how easy is it to tile over this and how could it be done?
Without seeing the wall it's difficult to say. With an uneven surface like brick it would probably take too much thinset to be stable. To do properly, the bricks either need to be removed, or covered over. You could apply concrete to the wall, but that would be hard to finish smoothly if you're not a pro. You could erect a wall out of wood as a facing and tile over that. If you put up a wall it needs to be substantial to support the weight of the tile.
Tile Over Brick Fireplace
tile on what? forget it over the painted brick, only if you hang (nail) metal lathe (to do stucco), apply brown coat( concrete mix,) with stucco tools, go from bottom up, then thin set mortar to start tile if it's on the wall. the thin set has to have something to stick to. between the brown coat and thin set, spray water over the brown coat so it doesn't suck the water out of the thin set. or you could sheetrock the wall using furring strips to hang the sheetrock, tape the seams and go from there
' sure it can be done but the plaster over paint of course could fall off after the paint begins to peel. Its best to scrape off as much of the paint as possible first before you plaster. You might use a paint remover to help make things easier. Plaster will stick best to wet bricks not dry bricks. then butter the tiles on the back and stick them on, however, its not going to be easy, I am afraid, unless the bricks are absolutely straight. good luck on this. You have your work cut out for you.
Because your dealing with moisture from the toilet, I wouldn't suggest to cut corners. There is much to consider when doing this project. What type is the paint that is currently on the brick? This makes a difference because you may need to prime the brick before you do anything on top of it. Secondly how porous is your brick? This makes a difference because if you put the setting material for the tile on it, it may absorb all the water and leave you with deficient walls. Third what tile are you planning on putting up? Size does matter. If it was me, I would prime the wall before I apply a thin layer of cement to even out the brick, then I would start putting the tile on.