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Porcelain paving??

Graeme Bewick
3 years ago

Hi. I'm currently laying a porcelain patio using 600x600 tiles. The sub base is down and compressed ( type 1) I have started laying tiles using 6:1 sharp sand to cement and an sbr/water/cement mix as a slurry to go on the back of the tiles. I've noticed that some of the tiles sound hollow when I tap them even though I made best efforts to bed the tiles using full contact. My question is if a tile or 2 pops which I'm guessing will happen over time is there an adhesive I could use to bed it back down on the mortar base? Also, advice other advice would be appreciated.

Comment (1)

  • Rowland
    3 years ago

    hi Graeme,

    without knowing the exact spec.of tile it is difficult to comment. I think you probably should have laid a concrete base for the tiles and then bed them using a proprietary tile adhesive, which you could have laid one full bed.
    there are trowels that have a depth guide allowing a full adhesive contact to the tile backing. what is the gap you are using between tiles? if you have a small space you are more likely to have issues with the tiles as they move than with a larger spacing to the tiles.

    I'm not sure whether I have answered your question, but if I were laying the tiles i would certainly remove and relay the tiles now rather than wait and repair the if they become an issue . you may be able to remove enough of the cement used to relay them using a tile cement to get them level with the adjacent tiles.

    best

    Rowland

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