Ceramic tiles on concrete floor?

[SMG]

My shower room floor is re enforced concrete, sat, I believe on polystyrene slabs, which are sat on a blue type plastic sheet, (Built 7 years ago). The concrete was covered with asphalt then tiled. My problem is that the floor is higher than the adjoining room floor, & I want it level. If I remove the tiles & asphalt, it will be at the level I need.

So, can I then re-tile onto the concrete floor?

Would there also be any problems with dampness or cold?

Thanks

 

[Terry7556]

should,nt be as the DPM is still in place.
you will probably need to put a layer of screed on the concrete to give the tiles an acceptable /level surface to lay on.
you would need to ask this in the tileing section or building part of the forum, someone like woody would give you a more accurate answer, but good luck with it anyhow

 

[SMG]

Thanks.

 

[Bahco]

Take the opportunity to put electric underfloor heating while you are on.

 

[SMG]

I would love to, but I thought it would bring the height up too much, dont you have to lay the heating mat on insulation board, etc?