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  1. J

    Laying mosaics over a wet room former

    hello, So I’ve been reading a few posts on here about laying mosaics, can’t seem to find anything for wetroom formers that already have the fall built in. Can anyone give me a few tips to laying mosaics over a wetroom firmer please? Area is around 2.5m2 and custard hasn’t chosen mosaics yet so...
  2. C

    Can I regrout over existing grout

    Hello, I have just had my bathroom done 2 days ago by a professional tiler. When he has finished the grouting it looks like he has washed too much grout out of the joints. Will it be OK to go back over it with fresh grout. The grout is a good quality flexible grout and the tiles are...
  3. R

    Tiling over old cement/adhesive

    Hi guys new to this. I've just taken up our old tiles and left with the mess below. Spent an hour with a steamer and scrapper but the old adhesive/cement isn't moving but at the same time it is cracking in some places..... Can't remove the ply as just had new bath and toilet fitted too it...
  4. L

    Decoupling membrane over ply

    I know this kind of thing comes up all the time, but i cant find anywhere for this. In my kitchen i have a 16mm floorboard floor. When i tile bathrooms i remove the floor, board with 18mm ply, board with 9mm and durables the lot. My question is, i cant remove the floor and height is an issue...
  5. I

    Builder caulked over grout

    Tiler used by builder to tile bathroom grouted all corners and some developed hairline cracks. Builder has now caulked over the grout in all corners with Mapei colour match caulk. Are there any issues with caulking over grout - mould etc?
  6. W

    Getting tempted to move over to Foam boards for all showers.

    Just picked up some Orbry board and was quite surprised how cheap it was. £21 for 2.6M x 0.6m x 20mm thick. The 12.5mm board is about the same. 20mm Board you only need 600mm stud centres. Does anyone use a foam board on all of their showers? I think I’m going to move over to it a bit more.
  7. E

    Do I need to latex over UFH pipe prior to laying ditra matting?

    Hi all, I have recently had JK Underfloor heating route out my existing screed floor with a 15mm groove to take the underfloor heating pipe. They have done a great job but my tiler is worried about sticking the ditra matting straight over the top without latexing it first to take up any small...
  8. M

    Wet room construction over joists with wet underfloor heating

    Hi, First time here and hoping this is an easy question! I am installing a wet room upstairs and going back to joists but I also want to install low profile wet underfloor heating (I already have it), what will give me the best surface to tile on and support a bath on top? So I was planning...
  9. D

    Would you bother slc over this floor?

    Good flat floor, 600x600 porcelain, just a few strips of uhf. About 16m² Here's a pic
  10. M

    How to tell if dot and dab method has been used?

    Hi All. We have recently undertaken a major house project which included installation of under floor heating throughout the ground floor. An incident last week revealed unexpected weaknesses in the kitchen floor which we have now found out (from our builder) is down to the method (dot and dab)...
  11. B

    Tiling over parquet floor

    hi everyone. Am I able to tile over customers hallway , original (old ) parquet flooring if I sand with a 40 grit mechanical sander , hoover up so dust free , apply an sbr / tiling primer , and bond an uncoupling membrane ie; durabase ci onto it using flexi rapid set addy . Would this be an ok...
  12. J

    Tiling over plywood substrate

    Hi. The walls in my ensuite are coming along well... Just thinking about the floor now. The original tiled floor was tiled over thin sheets of plywood. The ply was on top of T&G chipboard. Is it ok to tile on plywood? I seem to be coming across articles or posts that suggest not. Ta. D
  13. G

    Ditra over SLC over ply over ply

    (I know similar questions have been posted before but they're closed for follow up questions) I have a 1930s house where I'm renovating the bathroom - a complete refit that includes removing all the squeaky, somewhat rotten (in places), but crucially not-level floorboards and replacing them with...
  14. J

    Tiling over floorboards in bathroom

    Hi -- I'm a competent DIYer but new to tiling and looking for a little advice. I'm renovating the bathroom at my new place as when I moved in it was in a horrid state -- water damage everywhere, blown plaster, leaky soil pipe etc. I've ripped out everything back to the bare floorboards and...
  15. J

    Can you tile over existing ditra??

    Hi all I’m taking up bathroom floor tiles which have been laid on ditra which was put down on top of floorboards. The ditra is proving difficult to get up but seems secure and fixed in most places. Can you retile over The existing ditra ?? If not can you recommend best course of action RE...
  16. D

    Tiling onto concrete - over old adhesive.....

    Hey folks. I did have an old username here....but couldn't find it for the life of me! (Tiles are 190mmx570mm ceramic) I'm finishing up my kitchen, and have a 3500mmx500mm section of wall to tile between the worktops and the wall units. This wall is cast concrete(not the usual no fines crap...
  17. J

    Insulated cement boards over ply

    Hello all. I have a question....is it ok to screw insulated cement board (marmox type board) to a stud wall that is lined with 12mm ply? I've knocked down an old solid bathroom wall and replaced it with a stud wall. My building control guy has said that the new stud wall needs to be structural...
  18. S

    low thermal resistance Cement board over UFH?

    Hi all, some advice would be greatly appreciated. So the builder messed up in the loft during a major renovation in our house. In short, we have UFH boards laid out throughout the loft room and the en suite. At this point, the polypipe type foam boards and attached pipes are all on the same...

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