waterproofing

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  1. S

    UK Help needed for wetroom plan

    Hi, Can anyone please give me some advice. I have an old bathroom and I want to turn it into a part wetroom. It is the flooring that I need help with. Currently it has wooden boards with haphazard ply on top. My plan is to: 1. Remove ply. 2. cut a hole for shower tray. 3. cover floor (excluding...
  2. blackarrow1990

    Waterproofing existing shower

    Hello, I am about to waterproof an existing shower after taking out all of the old tiles and old mud waterproofing. From what I see there is an existing drainage. The idea is to clean everything with grinder (the rest of the previous material until reaching the drainage) and put new finish coat...
  3. Givey Tago

    Waterproofing options for new shower room

    Hi, A newcomer here and thank you to anyone with the patience to read my drivel. I am renovating an old stone house, have just finished a kitchen, and now need to install a first floor shower room (1.7m x 2.35m). The previous owner had the room to a state of green plasterboard walls, and...
  4. T

    Waterproofing Kerdi seams?

    I am a first time tiler, plumber and carpenter on my master bathroom job. I am ready to start waterproofing the seams on the Kerdi boards and screws. However I've read some information about the kind of thinset (unmodified versus modified) that it IS NOT WATERPROOF and don't want to move...
  5. robertlair

    Build-up Needed for Tile Installation in Shower

    I am doing a shower tile installation on mold-resistant drywall and I am waterproofing with redguard. The drywall comes down and sits on the shower edge/lip, and the tile will go over the lip and down to the base of the shower. All looks great except one of the studs was a little bowed and one...
  6. P

    Waterproofing showerooms

    Can anyone recommend best cement boards an waterproofing.... cheers in advance
  7. R

    Waterproofing bathroom plasterboard wall

    Bit of a long one and sorry if this questions been answered before. DIYer here. Planning on tiling the upper half of a bathroom wall over a bath to install an overhead shower. It’s a 5ish year old new build and currently has a bath installed and is tiled to about half way up the wall, above the...
  8. C

    New build bath tiled with mastic and no waterproofing?

    Hi there, long time lurker, first time poster. I’ve recently moved in to a new build property which looks like it was built on a late friday afternoon. I wasn’t keen on the bathroom tiles so decided to redo the whole bathroom walls and floors. After removing the bath wall tiles I noticed...
  9. I

    Self adhesive Waterproofing tape and Silicon

    Hi I’m just about to renovate small bathroom and replace bath with shower. We have very hard water so trying to use simple shower screen rather than sliding door which get all scaled up very quickly. So I guess it’s almost a wet room:) with open shower enclosure but a low 40mm tray. I intend to...
  10. T

    Waterproofing needed for cement backerboard?

    Hiya all, I'm a DIY gal on first bathroom. Wondered if you could check out my plans and let me know how I'm doing? Walls 15cm x 15 cm ceramic tiles Plastered masonry and plasterboard with Hardiebacker 6mm screwed on top My bf got normal plasterboard rather than water resistant so I've...
    • Topcad
    • Thread
    • backerboard cement needed tile adhesives waterproofing
    • Replies: 1
    • Forum: DIY Tiling Forum
  11. C

    Primer for new skim under waterproofing

    Hiya, just had a long discussion at Topps Tiles about which primer would be best to use under the waterproofing liquid. The technical sheet doesn't rule out to use the liquid on new skim (on bathroom plasterboard), provided it is primed first, but doesn't specify a primer. The store staff didn't...
  12. D

    Water Absorbency of Ceramic tiles

    Hi All, A while back a short course on tiling and have done a couple of smaller projects in the house. My brother in law has asked if I would be able to help him with his bathroom. It's not too big so it should be fine, but I need a little advice on tile suitability. He's looking at ceramic as...
  13. B

    Is this Silicon application faulty?

    Hi there, I've had a lot of help from you guys with regards to a large amount of pinholes in my newly installed bathroom grout - thank you. Today, I've noticed another problem that I would like to understand better and I would appreciate your input. I have noticed that the grout directly above...
  14. S

    Waterproofing before tiling

    Hi. I've just had the bathroom re-plastered and will be tiling soon. We have a shower above the bath and are wondering about what to use to waterproof before tiling. The plan was to use the mapei waterproofing kit on the walls (but not the tape as from what I've read this can peel off the edge...
  15. R

    Need advice on waterproofing 3 bathrooms - seems a bad job

    We are in the process of renovating our 3 bathrooms. One wet room (walk-in shower), one with a bath, and one with a shower tray. They have done the job whilst we were away on holiday and when we returned, two of the bathrooms were tiled and grouted, the third one wasn't grouted so we were able...
  16. Pinkybee

    Eco prim grip and liquid waterproofing

    I was wondering if it’s possible to use Eco Prim Grip either under or on top of a liquid waterproofing membrane (Mapei)? i was sold Eco Prim Grip and told I could use it over my waterproofing membrane before tiling at the shop, however I haven’t found any information online to back this up. I’m...
  17. A

    How to use a trowel on top of a tanking membrane

    Hi everyone, I'm a DIYer with a week's training how to tile. I am about to tile my shower. I plan to use a tanking kit first such as the MAPEI one. My question however is, would the trowel scratch the surface of the cured membrane, causing a breach and negating any waterproofing done?
  18. C

    waterproofing still intact?

    Hi everyone, Had some work done on my bathroom today, please pics. https://ibb.co/yqQ5Xq4 https://ibb.co/6H6vL3G https://ibb.co/kSBMb1K https://ibb.co/R24ZxH4 My question is, is the water proofing still intact here? Tiler said it was, the blue on the edge continues underneath, and they have...
  19. P

    Bal waterproofing kit?

    Good Morning, with the bal waterproofing kit, you do the following: prime with apd apply waterproof coating apply polyester tape apply waterproof coating my question is, if the tape is just held on by the waterproof coating which feels like a Silicon, then why don’t the weight of the tiles...
  20. T

    Waterproofing Bathroom Advice

    Hi, I am in the processing of redoing my bathroom and I am really confused as the the waterproofing methods! I have newly plastered sand cement on the walls with a shower over bath. A) For waterproofing the walls: - should I tank with Mapegum (liquid membrane) or Mapeguard WP200 (membrane...
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