Karndean Cupping

Discussion in 'Vinyl / Impervious floor coverings' started by Em Woodcock, Nov 14, 2023.

  1. Em Woodcock

    Em Woodcock Member

    6
    0
    1
    Hi!

    We had Karndean laid on Friday. We were really happy with the result but noticed after about a day that some of the planks started to bow and there is a hollow sound when you tap in it. We have a few major concerns with how the installation was done and I was wondering if anyone could let me know what remedial work should be done to fix it.

    Firstly the latex was left to dry for less than 24 hours. Whilst it was drying out underfloor heating suddenly came on (for likely less than 15mins). We have central heating pipes which run under the floor- does this mean we need epoxy adhesive?

    any help would be really appreciated as we are now left with flooring we have paid a load of money for that is not going to last.
     
  2. Yiddo1982

    Yiddo1982 Well-Known Member

    163
    20
    18
    Most can be laid on in under 24hrs nowadays

    Sent from my SM-G998B using Tapatalk
     
  3. Em Woodcock

    Em Woodcock Member

    6
    0
    1
    Also it was laid over Marley tiles which were cracked etc.
     
  4. Yiddo1982

    Yiddo1982 Well-Known Member

    163
    20
    18
    What latex was used. How come they never removed the tiles

    Sent from my SM-G998B using Tapatalk
     
  5. Em Woodcock

    Em Woodcock Member

    6
    0
    1
    Do you have any suggestions on how we can fix the issues we are having? Or does it need to be redone entirely?
     
  6. Em Woodcock

    Em Woodcock Member

    6
    0
    1
    I know it was a water based one that’s all I know, we were told they could not be removed due to potential asbestos in them.
     
  7. Yiddo1982

    Yiddo1982 Well-Known Member

    163
    20
    18
    I personally wouldnt use a water based screed over marley tiles and the tiles can be removed if done properly

    Sent from my SM-G998B using Tapatalk
     
  8. Em Woodcock

    Em Woodcock Member

    6
    0
    1
    Does it need to be totally relayed then?
     
  9. Rugmunching

    Rugmunching Well-Known Member

    3,730
    639
    113
    By sounds of it, it all needs coming up and start again from scratch. Sounds like the screed has blown, no fix for that other than the above
     
  10. dazlight

    dazlight Super Moderator

    6,937
    1,647
    113
    What’s the sub floor ? So you have pipe UFH ?
     
  11. Em Woodcock

    Em Woodcock Member

    6
    0
    1
    We have a concrete subfloor and pipe UFH in the extension as well as central heating pipes which run under the concrete in the section of the house with radiators
     
  12. dazlight

    dazlight Super Moderator

    6,937
    1,647
    113
    How long has the concrete been down. Was it moisture tested and if so how.
     
  13. Paul webb

    Paul webb Well-Known Member

    1,141
    144
    63
    Is the problem on both the new and old part?
     

Share This Page