Andrew Siddons

[andrewsiddons]

Hi, I have been asked by a friend to tile over some existing tiles that have been painted, they are sound. Is this wise to do?

[GirlRacerRed]

hi Andrew

Where are the tiles? Kitchen splashback? Bathroom? shower room?

GRR

[curlycan]

The way I was shown to make sure paint ( on any surface) is ok to tile onto is first get somes duct tape stick onto paint and peel off, if paint comes with the tape then you shouldn't tile over until paint is removed. The reason being is when you put you addy onto the paint, the only thing holding the tiles onto the wall is the adhesion between paint and wall.

[andrewsiddons]

Some behind the Aga and some behind a worktop and sink, but there is a splashback so shouldn't be a water issue.

Andrew

[GirlRacerRed]

My concern would be if you were tiling over tiles in a bathroom or shower area. Tile on tile in those situations are not recommended and only done with the correct materials.

If it's just in a kitchen, where the tiles are usually smaller and stand no chance of falling on anybody, then tile on tile is usually ok. It would be better to start from scratch though, particularly if the existing tiles are painted. You will have to get the paint off the tiles first before you can begin to tile on tile, so by the time you've done that, you may as well just pull all the old tiles off completely.

Hope this helps
GRR

[poynton phil]

I would definitly remove the paint first, and if the tiles under the paint are a glazed tile then you should use a S2 classed adheshive, ie keraquick mixed with latex, and if its a matt tile you should be able to use a S1 classed adhesive ie keraquick mixed with water, and there is no need to prime the tiles before tiling. But it would be better altogether to remove the tiles as grr said.

[doug boardley]

I'd be removing tiles completely

[whitebeam]

As above or at least remove the paint

[Diamond Pool Finishers]

hi

[jay]

and dont