Polypipe Overlay System - Tile Advice

[dansk]

Hi - im in need of some guidance.

As a person who installs underfloor heating - electric and wet - we get asked a lot to fit these systems often - to date ive done a few but over timber sub-floors so easy to screw down.

My question is - would we be better bonding these to the sub-floor with tile adhesive, this would give a firm bond - this is what we do with marmox boards when fitting an electric system - and secondly - because those boards are gypsum am i right in thinking a cement based adhesive would react and de-bond?

 

[Lee@emctiles]

and secondly - because those boards are gypsum am i right in thinking a cement based adhesive would react and de-bond?

That is a great 2nd question.

 

[dansk]

Im not sure which way to take your reply - but assuming your not adding anything to the debate its more on the sarcastic side?

Any thoughts on actually bonding overlay panels down with adhesive rather than just gluing the joints?

 

[Lee@emctiles]

@dansk sorry wasnt meant to be sarcastic, just the question ive been asked quite a few times and ive not had it clarified.

to me it would make sense to use a gypsum based adhesive.

 

[Lee@emctiles]

Morning chaps, just a quick one, ive lured polypipe into a conversation over on twitter with regards to installing tiles directly ontop.

just screen shot the chat, it started with me questioning if this floor was actually ready for tiling or not.

couldnt leave it there thou

am awaiting a response........

 

[Lee@emctiles]

i still believe the best two ways of installing over this are:

1,
Prime surface with TM Primeplus
Lay Decoupler/Anti fracture Mat (with either TM Ultimate or TM Setaflex)
Fix Tiles with TM Ulitmate or Setaflex
Grout with TM Grout 3000 with flexi master added

or

2,
Level it with Tm Levelflex/rapid level 30
Fix Tiles with TM Ulitmate or Setaflex
Grout with TM Grout 3000 with flexi master added
Heres the later, levelled.

 

[J Sid]

do TM recommend this method ? @Lee@TileTown
assuming the board are stuck down I use Ditra and tile as normal, I don't level under Ditra. I level the base floor first.

 

[DavidP-TUFHS]

An alternative option, which we have had tested by Instarmac (manufacturers of UltraTile adhesives) is to use our solid floor panel method. We use the same basic principal but with a few tweaks.

Here is a link to the install video which shows how it works - - if anyone has any questions about this or requires a bit more clarification on any specific issues let me know.

 

[J Sid]

yes David that's my preferred one to use, alot better