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Discuss Tiles sound hollow under underfloor heating in the Tiling Forum area at TilersForums.co.uk.

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  1. Alan Field

    Alan Field Active Member

    Location:
    Chester
    Hi Guys,

    I need help!! Basically I employed a cowboy and now there is a problem I can't contact him!

    I had my floor tiled (over 200sqm) prior to turning the under floor heating on. Now the heating has been on and off for over a month the tiles sound hollow when I walk over them! I feel they will crack in time and I haven't moved in yet so need a quick solution!! Will i need to take all the tiles up? It's not all of them just 3/4.

    Thanks in advance.
     
  2. jcrtiling

    jcrtiling Professional Tiler TTA Member Top Contributor

    Location:
    Salisbury
    Mapei adhesives do something called epojet . I am told this can be injected under tiles to stick them down and fill the voids . You should call Mapei technical and speak to them about it .
     
  3. JulianSidney

    JulianSidney Trusted Advisor Professional Tiler

    Location:
    ramsey, essex
    what was the screed?
    what are the tiles?
    was an uncoupling membrane used?
    how was the heating commissioned?
     
  4. Simons70

    Simons70 Professional Tiler

    Location:
    Luton
    IMO there is no way to sort out properly unless rip out and start again,maybe with some experienced tiler who know what need to do.
    Every time when I feel your pain I think at attitude like this;

    ''I did receive your quote however it was higher than others I have received unfortunately. thank you for your time''
    Check references,check previous job,check all you can before you hire someone,especially in big jobs!
     
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  5. Alan Field

    Alan Field Active Member

    Location:
    Chester
    The screed was a liquid thermio screed. And the tiles were ceramic. Not sure on the membrane? What does it look like?
    Heating was turned up 5 degrees at a time and turned down the same
     
  6. JulianSidney

    JulianSidney Trusted Advisor Professional Tiler

    Location:
    ramsey, essex
    possible bad prep to screed before tiling.
    do you know what prep was done and what adhesive was used?
    sadly, as has been said, probably all up
     
  7. Simons70

    Simons70 Professional Tiler

    Location:
    Luton
    Ceramic!Sure is suitable for floors ,especially heating floors?
     
  8. Doug Boardley

    Doug Boardley Trusted Advisor Former Staff Professional Tiler JOTM Winner

    Location:
    Kendal
    liquid thermio screed? is that an anhydrite screed?
     
  9. JulianSidney

    JulianSidney Trusted Advisor Professional Tiler

    Location:
    ramsey, essex
    I believe so, hence my question re prep
     
  10. Alan Field

    Alan Field Active Member

    Location:
    Chester
    than
    thank you
     
  11. impish

    impish Trusted Advisor Professional Tiler Top Contributor

    Location:
    Lancashire
    It's a gyvlon screed. Probably not been recognised as such and treated as such!
     
    • Agree Agree x 1
  12. JulianSidney

    JulianSidney Trusted Advisor Professional Tiler

    Location:
    ramsey, essex
    might be an idea to be sitting down when you get a quote for that
     
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  13. Doug Boardley

    Doug Boardley Trusted Advisor Former Staff Professional Tiler JOTM Winner

    Location:
    Kendal
    my thoughts too :(
     
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  14. Rookery

    Rookery Professional Tiler

    And mine. it's Orange Juice time again.
     
  15. Doug Boardley

    Doug Boardley Trusted Advisor Former Staff Professional Tiler JOTM Winner

    Location:
    Kendal
    bugger that...I'm having a vino..
     
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  16. impish

    impish Trusted Advisor Professional Tiler Top Contributor

    Location:
    Lancashire
    Ditto that!
     
  17. Rookery

    Rookery Professional Tiler

    You're obviously too young to remember the 1983 hit by a Scottish band named Orange Juice. The song....... Rip It Up And Start Again
     
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  18. Doug Boardley

    Doug Boardley Trusted Advisor Former Staff Professional Tiler JOTM Winner

    Location:
    Kendal
    Edwin Collins lead singer ;)....I was 20 then :)
     
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  19. JulianSidney

    JulianSidney Trusted Advisor Professional Tiler

    Location:
    ramsey, essex
    and we thought marc was old :)
     
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  20. Rookery

    Rookery Professional Tiler

    Ha. Mere babies
     
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  21. jcrtiling

    jcrtiling Professional Tiler TTA Member Top Contributor

    Location:
    Salisbury
    Do you not think he should be sat down for remove tiles ,prep floor , fix membrane , tile floor , buy new tiles , membrane and fixing materials . That lot is not going to be cheap .
     
  22. timeless john

    timeless john Trusted Advisor Trusted Advisor Professional Tiler JOTM Winner Top Contributor

    Location:
    North East England
    I was 60!
     
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  23. callatiler

    callatiler Professional Tiler JOTM Winner Top Contributor

    Location:
    Aberdeen
    Hi, best bet is to get a reputable tiler on board first, plenty to choose from on here, find one near you, and get him to take up a tile you suspect is loose to see what is going on first. :)
     
    • Agree Agree x 1
  24. JulianSidney

    JulianSidney Trusted Advisor Professional Tiler

    Location:
    ramsey, essex
    the tec sheet for epojet says for concrete and metal. So maybe not suitable. Also the surface to be bonded must be clean and sound which will not be the case if this is a unsanded gypsum type screed.
    but good thought :)
     
  25. impish

    impish Trusted Advisor Professional Tiler Top Contributor

    Location:
    Lancashire
     
  26. jcrtiling

    jcrtiling Professional Tiler TTA Member Top Contributor

    Location:
    Salisbury
    I've heard it has been used on a dodgy floor in a restaurant in a major attraction in that London which apparently from what I heard was spot fixed and where they were washing with wet mops water was pooling underneath and starting to smell . So come the day of injection it drove the water out and stuck the floor down . But I am gullible I do like to believe what people tell me , I even think politicians tell the truth
     
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  27. JulianSidney

    JulianSidney Trusted Advisor Professional Tiler

    Location:
    ramsey, essex
    from date sheet
    RECOMMENDATIONS •
    Do not use Epojet at temperatures below +5°C.
    • Do not apply Epojet to wet surfaces.
    • Do not apply Epojet on dusty, friable or weak substrates.

    yes they were pull your leg
     
  28. Alan Field

    Alan Field Active Member

    Location:
    Chester
    So if I was to take up how would I prep the floor and could I re use the tiles if they don't break?
     
  29. JulianSidney

    JulianSidney Trusted Advisor Professional Tiler

    Location:
    ramsey, essex
    were you not give a brochure by the screeding company in which it would have told you what the screed type was, how long to dry and how to prep it ready for whatever was going to cover it?
     
  30. Alan Field

    Alan Field Active Member

    Location:
    Chester
    The floor screed was laid in September it is a thermio floor screed that
    Yes it was a Gyvlon screed called Thermio. And all it says is to sand once dry. The screed was poured in September last year. I also saw the tiler use some sort of prime base after sanding and he used a flex adhesive as he said this will be ok when the floor warms up and expands??
    I just need to know what a tiler will need to do so I don't get ripped off again! Unfortunately there are a lot of people who think they are a trades man because they can do things to an ok standard!!
     
  31. JulianSidney

    JulianSidney Trusted Advisor Professional Tiler

    Location:
    ramsey, essex
    the floor will need sand again when tiles are lifted to clean floor.
    you need to lift some tiles to see if the adhesive is stuck to the floor or tile.
    any expansion joints been put in ?
     
  32. Alan Field

    Alan Field Active Member

    Location:
    Chester
    I don't think expansion joints have been used? What happens if it's stuck to tile?
     
  33. pdc

    pdc Professional Tiler Top Contributor

    If the adhesive is on the tile and not the screed it tells you that either the floor wasn't prepared correctly and/or the wrong adhesive used.
     
  34. Bathfix Bob

    Bathfix Bob Professional Tiler

    What makes you think he is a cowboy Alan? other than the tiles are loose?
    I'm not saying he's not but what else has he done?
    What is the quality like?
     
  35. Kyle Knowles

    Kyle Knowles Professional Tiler

    Location:
    Widnes
    I'm about 30 mins from chester :D
     
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