render over tiles - Tile Advice

[cgalloway]

The exterior of my house is covered with smooth ceramic tiles, approx 2"x6" each. I'd like to render over these to provide a textured finish but I'm not sure how to do it. The local practice seems to be to plaster over the tiles before painting on a textured finish, but this seems a bit labour intensive, not to mention expensive. I'm wondering if anyone knows whether its possible to apply a textured render directly over the tile (perhaps after a primer), something like Dulux Full Cover texture (though this is apparently for brick), or even better a spray on solution (Acratex?). Any ideas?

 

[White Room]

Hi and welcome....I'd ripping them off to be honest, you don't know how they were fitted or how they will take the weight of the render.

 

[cgalloway]

The tiles seem pretty well stuck on, I removed some of them already when I installed new windows. The issue I think is going to be with adhesion. I wonder if I could rough up the tiled surface with an abrasive wheel on a grinder, something like that? I'd prefer a DIY approach as the standard of competence/honesty around here is not terribly high and I'm not sure I have the time for a long haul approach.

 

[Ceramico tiling]

you could also score them all over the place with your hand held grinder(with a diamond blade)

 

[cgalloway]

I wonder if I could prime it with Mapei Eco Prim Grip?

 

[Gazzer]

I am not a plasterer or renderer but I know that Mapei Eco Prim Grip can be used if you were retiling over the existing.......assuming the existing tiles are suitably fixed .