Create a smooth work.
Tile over painted brick wall.
Find your high spots and shim out the rest as needed.
A scratch coat will give the mortar something to hold on to instead of the layer of paint over concrete.
This surface is called a scratch coat.
If your paint tests positive call a professional.
Use painter s tape to mask off.
Most likely you will have to wire brush the painted block keeping in mind rrp work of course and then use a thinset with a special additive made for that type of situation.
Mortar cannot be installed directly over painted concrete itself.
Tile over painted brick squaring the framing will be time consuming but would make the cleanest install.
If possible you should remove the existing mantel for easier tile.
However sometimes is it much easier to tile over tile the existing layer.
Next remove any loose mortar and paint that may be.
When tiling an area that is already tiled or painted it is often necessary to invest considerable time in stripping and then repairing the substrate.
Clean and prepare existing brick.
The first step is to remove any existing trim or moulding from the wall as you won t want to tile over them.
However this requires careful consideration and extra properties from the adhesive.
Call a good tile supplier not hd or lowes and ask what adhesives are available for that situation.
Place drop cloths over the hearth and the floor.
If you re not sure if you have lead paint test kits are available.
Work up from the board first then when the thinset hardens take it off and work down the sides of the fireplace.
However tiling over tile can add quite a bit of thickness so make sure your wall can handle the weight.
Place strips of blue painter s tape over the tile face sticking each end to the wall to prevent the tiles from sliding.
Nail a straight 1x board horizontally across the fireplace in line with the top of the firebox and use its top edge as.
You can put ceramic or stone tiles directly over your painted brick provided that you rough up the gloss paint finish a bit with some sandpaper and you use a fortified thinset mortar don t buy the pre.
I have a gloss painted brick wall surrounding a fireplace which i would like to tile over maybe with slate or ceramic tiles.
Continue placing the first course of tiles in the same manner using spacers.
You should not tile over wallpaper glossy surfaces lead paint or plywood.
How to tile over a brick fireplace step 1.