Alternative to grout for thin fill on flooring?

Discussion in 'Tilers' Talk' started by Draca, Feb 1, 2022.

  1. Draca

    Draca New Member


    I have a client that's asked me to tile a hallway using large 300x300 tiles made to look like nine individuals 100x100 'tiles' (I hope that makes sense?!). The line of light grey 'grout' inbetween the nine sections of individual 'tiles' on the 300x300 tile is max 2mm so it would be ideal to continue that slim grout line inbetween the 300x300 tiles but I'm concerned that's too thin for a floor, where movement might cause the grout to crack and it'll also be tricky to get a good solid fill. Can anyone offer any advice? Is there a suitable alternative to traditional flexible grout? I've contacted the manufacturers about it but they've not responded.

    Also, the job is tiling over wooden floorboards in a victorian terrace so I need to put some backing boards down first so I'd welcome recommendations for what brand/type to use.

  2. PawelM

    PawelM Member

    2mm grout is ok as long as subfloor is rigid.
    For belt and braces approach you can use decoupling membrane, flexible adhesive and epoxy grout
    Draca likes this.
  3. FlyByNight

    FlyByNight Screwfix Select

    Call teh Ardex helpline - they do two grout versions, for narrow and wide gaps.
    Draca likes this.
  4. JimTiler

    JimTiler Active Member

    I don’t much like these tiles, when I do come across them I will tend to cut them in to smaller tiles and lay as individuals.
    It may seem extreme but I don’t fancy going back if the grout pops out.

    Bal Micromax2 goes down to 1mm if you don’t fancy that route.
    Draca likes this.

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