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Gap between shower tray and plastered wall

  • 19-11-2016 11:54pm
    #1
    Duckytech
    Registered Users, Registered Users 2 Posts: 164 ✭✭


    Hi there,

    Looking for help in how to fill a gap between my shower tray and the plastered wall. The tray is lying below the finished plastered wall in one section and as a result there is a gap in one section.

    My plumber fitted classi seal to tray and put tray into position. Athough the classi seal is flat against most of wall there is this one area where the seal is below the finished plaster.

    I intend to waterproof/ tank both shower area and bath area.

    Is there anything I can use to build out this area under the plaster, behind the classi seal, in order to have a flat surface for the classi seal to sit against? I think it's too thick (approx 10mm) for plaster skim and not sure about bonding it out. Maybe flexible tile adhesive?

    I have attached a photo to help explain.

    Also, as a side note, do I overlap the tanking tape onto the classi seal in order to adhere the classi seal to the wall? Then apply membrane coats x2? Or would I just use the membrane and seal over the classi seal?

    Thanks for any assistance.

    Cheers,

    Duckytech


Comments

  • #2
    Duckytech
    Registered Users, Registered Users 2 Posts: 164 ✭✭Duckytech


    Hey Mods, should I move this to heating and plumbing?

    Thanks


  • #3
    agusta
    Closed Accounts Posts: 1,590 ✭✭✭agusta


    Prime the walls with the primer that came with the tanking kit as per instructions.Fill the gap behind the seal with flexible tile adhesive and let dry.
    You can put some of the tanking behind the seal and the outside of the seal and apply the tape over the seal.Clean the shower tray withing a few mins if the primer or tanking gets on it.
    Also prime all the walls with bal apd or similar if tiling full walls


  • #4
    Duckytech
    Registered Users, Registered Users 2 Posts: 164 ✭✭Duckytech


    agusta wrote: »
    Prime the walls with the primer that came with the tanking kit as per instructions.Fill the gap behind the seal with flexible tile adhesive and let dry.
    You can put some of the tanking behind the seal and the outside of the seal and apply the tape over the seal.Clean the shower tray withing a few mins if the primer or tanking gets on it.
    Also prime all the walls with bal apd or similar if tiling full walls


    Thanks Agusta.

    I actually rang tiling shop this morning and he said that the classi seal should be left 'loose' and not adhered with the tanking membrane. He said it allows the seal to flex as it is intended.

    Although I understand this, I would have thought it would be better to seal the classi seal and so ensure a easy run off for any water that may get in behind the tiles?


  • #5
    agusta
    Closed Accounts Posts: 1,590 ✭✭✭agusta


    Seal is flexible and so is tanking kit.its not waterproof if you dont tank over the seal


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