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Minimum height when laying porcelain tiles?

Hi

Strange question I know but I'm wondering what the the minimum height addition would be when laying porcelain tiles?

We're trying to figure out if we have enough room to install a low profile underfloor heating kit. Problem is our front door is only 34mm above our concrete floor! That doesn't give us much room to play with.

A local company can install an 18mm kit. He's suggested using a tiling mat on top of the cement boards. I'm guessing the tiling mat would be around 3mm, 3mm for adhesive and then the tile thickness on top of that?

Most of the tiles I see look to be around 9mm. Is it safe to assume the minimum addition would be about 15mm?

Too close for comfort :(

Thanks!

Comments

  • supa34
    supa34 Posts: 138 Forumite
    Eighth Anniversary Combo Breaker
    For underfloor hearing they recommend 10mm insulation board.

    Total height is 3mm adhesive, 10mm board, 3mm wire, 3mm adhesive, 10 to 12mm tile.

    So only way possible is for you to do it without insulation boards.
  • rob7475
    rob7475 Posts: 1,005 Forumite
    Part of the Furniture 500 Posts Name Dropper Combo Breaker
    Is it a solid door that can be trimmed?
  • simons_s
    simons_s Posts: 33 Forumite
    Third Anniversary
    supa34 wrote: »
    For underfloor hearing they recommend 10mm insulation board.

    Total height is 3mm adhesive, 10mm board, 3mm wire, 3mm adhesive, 10 to 12mm tile.

    So only way possible is for you to do it without insulation boards.

    Are you referring to electric? We're covering 55sqm so electric isn't really an option for us
    rob7475 wrote: »
    Is it a solid door that can be trimmed?

    I'm not sure what you mean by trimmed sorry

    Has anyone got experience with luxury vinyl click flooring?

    Some of the LVT's I've seen are very thin (4mm) and I've read the click kind can be laid directly on top of the underfloor heating cement boards. Apparently the glue down type would need a screed putting down first.

    That would mean I could put down a later of 6mm insulation, 18mm underfloor heating and then the 4mm LVT.

    That could be an option?
  • supa34
    supa34 Posts: 138 Forumite
    Eighth Anniversary Combo Breaker
    What tiling Mat do you mean?

    Do you mean Matt for base cracking? They are only a few. mm thick and you will have no issue.
  • southcoastrgi
    southcoastrgi Posts: 6,298 Forumite
    Part of the Furniture 1,000 Posts Name Dropper Photogenic
    supa34 wrote: »
    What tiling Mat do you mean?

    Do you mean Matt for base cracking? They are only a few. mm thick and you will have no issue.


    If it's 18mm the op is talking about wet underfloor not the electrical mat you are thinking of
    I'm only here while I wait for Corrie to start.

    You get no BS from me & if I think you are wrong I WILL tell you.
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