How do i waterproof my upstairs bathroom

Discussion in 'Tiling' started by pauld115, 28 Dec 2007.

  1. pauld115

    Joined:
    30 Nov 2007
    Messages:
    24
    Thanks Received:
    0
    Location:
    Berkshire
    Country:
    United Kingdom
    my upstairs bathroom is above kitchen, it has a shower, can anyone advise on how to completely waterproof it because there is regular water coming through the kitchen ceiling. It has a timber floor
     
  2. gcol

    Joined:
    22 Sep 2005
    Messages:
    6,597
    Thanks Received:
    53
    Location:
    Lancashire
    Country:
    United Kingdom
    Can you give a bit more information?
     
  3. tiler jase

    Joined:
    30 Dec 2007
    Messages:
    32
    Thanks Received:
    0
    Location:
    Cheshire
    Country:
    United Kingdom
    You most certainly need to install a waterproof tanking system. This is a latex based membrane which is either trowelled or painted on to the substrate material (i.e plaster) and sealed with the addition of a polyester type matting on the movement joints.These are the points such as where two walls meet (corners) and where the shower/bath meet plastered walls etc. These all in one kits are guaranteed for 10 years and are superb. I wont tile shower areas without them now. A kitchen fitter friend of mine used his shower for two weeks with the tanking system whilst i waited for him to chose some tiles!
     
  4. JohnD

    Joined:
    15 Nov 2005
    Messages:
    38,260
    Thanks Received:
    1,524
    Location:
    Hampshire
    Country:
    United Kingdom
    it could also be caused by:

    water pipe leaking under floor

    trap or waste pipe leaking

    pipe leaking where chased into wall

    none of which will be helped by proofing the floor or walls.

    You need to identify where the leak is. there is a fair chance that if you fix it, then water will stop going through the kitchen ceiling
     
  5. tiler jase

    Joined:
    30 Dec 2007
    Messages:
    32
    Thanks Received:
    0
    Location:
    Cheshire
    Country:
    United Kingdom
    Hmm fair comment John. But surely if a pipe has been chased into the wall and leaks it will involve tile removal, replastering, and retiling.If its the trap surely the tray will need removing and trap repairing which will damage the tiles? and again need replacing?. I would safely estimate that 95% of the showers in this country are not not waterproofed and causing damage as we speak. How would you personally waterproof a shower and guarantee a customer there would no more damage for at least ten years?
     
  6. JohnD

    Joined:
    15 Nov 2005
    Messages:
    38,260
    Thanks Received:
    1,524
    Location:
    Hampshire
    Country:
    United Kingdom
    tell him not to turn it on?

    pauld115 has got to find his existing leak and fix it. It might or might not be cured by tanking.
     

Share This Page