25m2, 300x300, porcelain sq edge tile

[disco]

This is a follow on from my last post.

located here

http://www.tilersforums.com/electric-underfloor-heating/34764-big-uf-tiling-insulation-question.html

So I lifted the old terracottas, levelled using slc (good enough for the insulation boards to be laid), laid the insulation board (10mm), laid the ufh mat (electric) and polymer slc'd over the ufh.

the floor is flat to a tolerance of 3-4mm BUT is definitely not level. I am in two minds as to whether or not to patch those areas with more slc OR to put a really thin coat over all of it again OR to make it up in adhesive? Your opinions are as allways valued

The total floor area is 25m2 over 3 rooms

The chosen tile is a 300x300 sq edge porcelain tile. The client doesnt mind either a 2mm or 4mm grout line. (4mm makes my life a little easier)

I was going to use a 12mm square notched trowel? (your opinions again)

I would like to try a leveling system my choices in order of preference are.

1.tls
2.rls
3.qep

Would anyone like to hire me their tls I would of course have to pay for the consumables (Im based in Oxford). A cheeky punt I know but nothing ventured nothing gained Rodney! Otherwise the TLS is out of the running (If I get on with the tls I will then buy the sytem and offer the hire of it to one other person who is also considering buying it) OR is anyone selling a TLS?

2. rls Im going to enquire at the merchants on monday as to the cost I suspect it will be expensive though

3. QEP - Undecided yet - in the UK the reviews aren't brilliant - In the US they are much much better.

4. And yes I could lay them as I have all of my other floors Id just like to try the leveling systems for myself and make my own informed decision and also post my thoughts forothers to read

I would like to try a levelling system

IM NOT SHOUTING BUT A REALLY IMPORTANT QUESTION IS - CAN THE LEVELLING SYSTEMS BE USED WITH UFH? 200w not 150w?

###Dave Neave#### - Would you send me a single Lash clip so I can see them for myself - I will be buying them from you if I decide to use the system.


All your opinions are appreciated.

Any questions just ask

Thx

 

[tfs]

Hi mate,

I havent read your other post but in ref to the floor being out of level; I would say that it is more essential that the tiles are laid flat rather than the floor 100% level. Some guys may disagree with me on this but, if you build up at one side there may be a big height increase especialt at door opening etc. For this reason I feel that in some cases it is acceptable to have a slight discrepancy in the floor levels (within reason) as long as it is flat.

You will be in a better position to decide wheter or not this is viable.

 

[jay]

pics might help

 

[disco]

Im not worried about it being out of level. Pics what of? and what for?

 

[jay]

Im not worried about it being out of level. Pics what of? and what for?

pics of the floor in question

 

[tfs]

Hi mate, when you reffer to tls, rls and qep levelling sytems do you mean the little adjustable clips?

If so, I personally wouldnt bother with them as they shouldnt realy be needed if you have already prepared your surface.

If you have some areas were there are dips in the floor then you can patch fill these with some adhesive/ repair compound and a straight edge, idealy this would have been done before laying your electric mats.

 

[tfs]

then the slc would go over the mat ready for tiling