tiling straight onto blocks

[Alan M]

hi all
im preping a bathroom today.
iv removed a lot of loose skim from the walls (all of it really ) one wall has areas of well stuck skim and areas without skim. also there is a fair bit of the plaster coming off while im taking off the solid skim (to make it all even)
iv got a good kango so removing all the plaster isnt a problem
would it be ok to strip it back to the blocks. and tile straight onto that ( hoping its straight etc enough).

thanks alan

 

[peteablard]

If they are breeze blocks and you prime them then it is possible but personally I'd always prefer to re board it

 

[Alan M]

4" concrete blocks. im trying to leave it there. but its a lot of hand chiseling and i still have to fix the bits missing, that kango is calling me every time i stop for a break . id have the whole lot off in an hour insead of 3-4 chiseling and plus fixing it and waiting for that to dry

 

[bugs183]

You really should board it, you'll save a huge amount of time, swearing and adhesive if you don't.

 

[Bubblecraft]

I'd personally re-board. Tiling straight on to block is possible but slightest movement in the wall will cause your grout line to crack, or worse, your tiles, even if you use a GT1 or any other latex additive. At least re-boarding you know your tiling onto a sound surface with minimum amount of problems & not that expensive to do. Would be cheaper in the long run to re-board.
The other option would be to plaster it if that works in your favour. A good bonding coat, then finish & you can tile straight on to that. Just mind & prime it.
Both options have there pro's & cons but still a safer option than tiling straight on to block. You'll be called back in no time

 

[Monique]

We are looking at getting front of house bay window area tiled, we have got this area back to breeze block. And I can see you all advising you board it up before tiling, What would you recommend we re board it with?

 

[Ben-gee]

Hardie backer or STS cement board