Decoupling matt problems

[nipper76]

has any one had problems with any of the decoupling matt systems after they have laid them? be interesting to find out peoples veiws ?

 

[Colour Republic]

What one did you use? and does the floor sound like it's crunching?

 

[nipper76]

oh well yes sounds like you have the same issue i used the blue one made by blanke german same as gmatt and the old dura base what did you use?

 

[Colour Republic]

I personally haven't had a problem but know others have. It seems a bad batch made around towards the end of last year is to blame.

There are a few thread already but some you won't be able to access

here's one you can

http://www.tilersforums.com/tiling-forum/47908-de-coupling-failures-any-input.html

 

[nipper76]

thanks for that ! dose not sound good i lifted a tile and looks like the mat has come away from the backing felt clean and now the magority of the floor looks like it is floating and starting to crack up the client is not best pleased and matt supplier is saying poor work manship or adhesive!! socan see this is going to go and go!!

 

[Colour Republic]

There is a repair system by injecting the floor. I know Dural are sorting their problems out with failed floors, not sure on the others. But it sounds like you have the same problem so I wouldn't let Blanke palm you off

 

[nipper76]

thanks for that well i am waiting on the supplier getting back to me so will see what comes of it!

 

[wildatheart]

hi nipper
have been laying stone floors for 30 years never had a floor fail, all of a sudden i have had 3 floors fail this year and the only
thing different i have done is to use G matting, have never had a problem with dittra matt. any one else out there had any probs with
G matting this year

 

[nipper76]

interesting i have a feeling that these mats are out coppying ditra mat and posibly cutting a corner! as the gmat , dura base and wounder mat and the anti crack mats that are all being sold by diffrent companies are being made buy one factory and just being pacaged acordingaly!
what was that out come of your floors from genisses?

 

[wildatheart]

hi nipper
no outcome yet, all problems ongoing. trying to establish reasons for matting failing. going to involve the TTA. it seems a difficult thing to prove. am also trying to find out how big a problem it is with other stone or tile fixers

 

[nipper76]

have you lifted any tiles to see what is happening? i have and it looks like the felt backking has come clean away!all adhesive is good ?

 

[wildatheart]

no not yet have meetings at jobs over next couple of weeks, all big jobs about 350 sq mts in total.
have been having sleepless nights worrying about it. will let you know outcome

 

[nipper76]

what do you expect the out come to be? are they trying to pass the buck and say adhesive problems or work manship?

 

[wildatheart]

no problem with workmanship floors are spot on and level to 5mm tolerance over whole area. clients just want it resolved. up until now neither me or builder wants to admit being at fault (not many builders understand stone flooring) i was thinking could be thermal shock or screed breaking up under matting, glad i always put expansion joints in floors. builders are getting stone fed people in to write reports on floors, have spoken to stone fed and TTA they wont admit there is problems with g matt but will say they are investigating complaints about g matt

 

[jay]

has it got UFH by chance

 

[Crazytiler]

My understanding is that CI matting bought this year isn't a problem but have heard of problems with the Blanke stuff

 

[wildatheart]

yes jay, both problem floors have UFH

 

[DHTiling]

My understanding is that CI matting bought this year isn't a problem but have heard of problems with the Blanke stuff

Dural ci + is made in a totally different factory now than the others.. so yes it is now safe say Dural.

 

[nipper76]

Hi jay the original post by me was alarge stone floor with out under floor heating but it is the Blanke uni matt pro the mat was laid spring last year.
what have you come accros?

 

[jay]

Hi jay the original post by me was alarge stone floor with out under floor heating but it is the Blanke uni matt pro the mat was laid spring last year.
what have you come accros?

just thinking out loud and trying to work out the problem just a thought that maybe the UFH might be re activating the glue used on the fleece ,but there's been failures without UFH

 

[advancetiling]

I live near dural in wakefield and spoke to their head guy about the c.i. matting. theyve changed it since last year,different shapes on it now.presumably had problems with the old stuff,although fortunately i never have

 

[kaharrison9]

Solution seems to be use ditra.
I wouldn't chance anything.
The new ci matting is meant to be okay but only a year the troublesome old ci matting was meant to be fine
Until i hear other guys or myself having bother with ditra i won't be chancing anything else

 

[Marcusko89]

Cant go wrong with ditra .

 

[TrumpersUnited]

ive not had any problems with the new ci matting.....use quite alot of rolls and not 1 come back.

 

[Ken Bruty]

I too have used the new Dural CI+ with no issues whatsoever, infact it seemed more stable when I fitted it, come to think of it, I didn't have any problem with the old CI, guess I was lucky not to have got a rogue batch. Nowadays, I try to use the Mapetex as much as possible, as there is only one layer, less to go wrong, it's cheaper, and adds less to the height of the overall floor. Also you can see the adhesive ribs through it when you are fitting it, so you can see that when you have pushed it into the adhesive that a solid bed has been achieved, superb product!

 

[Perry]

have a look on the usa forums you may find some info read about it a year ago but dont know where

 

[Perry]

Uni Mat Failures - Ceramic Tile Advice Forums - John Bridge Ceramic Tile

look at this

 

[White Room]

Paid off to keep his mouth shut, cool but still spilt the beans..