Tile directly on hollow brick?

[gizzmo06]

Hello!

I was thinking that someone kind here on byggahus might be able to help me with a question.
I'm going to tile my laundry room in the basement, which currently consists of plastered hollow stone.

The plaster is not in the best condition, so I'm considering, as the headline says, maybe tearing it off and tiling directly on the hollow stone?
Is this possible, or do I need to skim the wall to make it even?

Grateful for answers
Best regards/Emil

 

[byggare henke]

depends on what type of plaster it is.
lime or "cement" plaster

 

[gizzmo06]

It is kalk puts as far as I know!

 

[byggare henke]

ugh. tricky food that. would bet on knocking down.
otherwise, it'll be priming that might not work.

 

[gizzmo06]

But it's no problem to tile directly onto the perforated brick afterwards, do you think?

 

[byggare henke]

Sorry. I think you need to start with something.