tiling onto damp concrete floor - TilersForums.com

[annacarter]

Our final job in a long renovation, is our kitchen - the concrete floor is damp and I am desparate to discover a way of tiling it without having to take up the concrete floor to lay damp proofing membrane unerneath a new layer of concrete... The concrete in the other downstairs room was only a thin layer over pannett tiles - the kitchen floor is sadly rather more solid. As our ceilings are already very low we can't add another layer of damp-proofed concrete over the existing one.
Please, someone, give me some good news!!

 

[White Room]

How old is your property

 

[mikethetile]

:welcome:what age property is it

 

[mikethetile]

marks done it again:lol:

 

[White Room]

:lol::lol::lol:

 

[Ken Bruty]

You can use a dpm resin and skim over with 3mm slc (latex screed) and tile straight onto it. Ardex do a roll on dpm.

 

[poynton phil]

You might be able use a liquid dpm, mapei do one but cant recall the name at the mo, then you should be able to tile over that within a day or two.

 

[Ken Bruty]

Forgot to mention, you have to skim a latex layer before applying the dpm, and make sure it has no pin holes in it

 

[annacarter]

Thank you for so many quick responses!
The property is a small 1820s middle terrace.

I'm liking the sound of a dpm resin and latex skim. 6 or 7 mm height loss I can cope with!

Is there any particular mortar that should be used on top of the latex screed?

 

[Ken Bruty]

Thank you for so many quick responses!
The property is a small 1820s middle terrace.

I'm liking the sound of a dpm resin and latex skim. 6 or 7 mm height loss I can cope with!
(Excuse the stupid question, but are dpm resin and liquid the same?)

Is there any particular mortar that should be used on top of the latex screed?

The dpm resin, is a sticky gooey 2 part epoxy based liquid to be precise.:thumbsup

I would advise a single part flexi tile adhesive on top which will enable you to have stone, ceramic or porcelain tiles fixed.