plywood

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  1. O

    Cement board vs ply under tiles for wet UFH system

    Hi there, we have just installed a Hetta UFH system.. they recommend a 6mm plywood over the top before tiling. I called them and they admitted that ply is a poor conductor. Does anyone have any experience with cement board (such as Hardie backer or similar) to improve thermal transfer in these...
  2. S

    Plywood or Backer Board?

    I'm about to tile my kitchen with 600mm x 600mm porcelain tiles. I am tiling onto a subfloor, which already has 22mm floorboards. When I previously tiled onto this floor I used 6mm Plywood, this was 12 years ago. I am planning in ripping up the old tiles and 6mm of ply. What Im now trying to...
  3. C

    Removing self leveller and Ditra from plywood floor

    Hi All, I’m ripping out a failed existing tiled floor. Tiles had not been back buttered so they popped off easily enough. I’m now confronted with a layer of tile adhesive, a layer of self levelling compound of varying thickness (6-12mm) covering electric underfloor heating mat which is on top...
  5. L

    Confused about hardiebacker 6mm on plywood

    I’m trying to get my head around the best way to secure 6mm hardiebacker to 18mm plywood subfloor. Plywood is directly on joists. Hardie docs seem to mention both a non-flexible mortar and modified thin set. I’ve got a bag of Keraquick and some bottles of LatexPlus waiting for collection from...
  6. L

    Bathroom floor - plywood or floorboards

    Hi all, I’ve got an old Victoria house with 20mm first floor floorboards. They’re in quite good shape but 1-3mm gaps between some. They’ve been pulled up for the plumber in the 1st floor bathroom, and my original plan was to remove them all and replace with 18mm WBP plywood onto the joists...
  7. G

    Level Subfloor Under Plywood Before Tiling?

    I'm off level 1/8'' over 2' and 1/4'' over 4', from left to right in picture. Building recessed shower for schluter pan. What can I use to shim between joists and plywood to level out? Roofing felt? Drywall shims? I need something I can screw through but which won't compress. Looking for...
  9. B

    Tiling on Marine Plywood Fail - how to fix

    Hello, I assumed I could tile onto marine plywood and my tiles fell off ... I'm tiling on a wall behind a wall-hung toilet using 25x50cm tiles. I scraped off as much adhesive as I could, but there is still a fair bit stuck fast to the plywood. I now know that I need to prime the ply, but can...
  10. djkprojects

    Plywood for Wetroom subfloor

    Hello guys, I'll be converting one of my upstairs bedrooms into an en-suite/wetroom and I want to replace th existing floorboards with plywood but struggling to figure out which type I need. I understand that it should be hardwood plywood which is at least EN 636-2 and EN314-2 Class 2 compliant...
  11. JakubK

    What adhesive would you recommend?

    Hello, I've got to lay 45 X 45cm tiles (1cm thick) on a suspended floor with 22mm chipboard overlaid with 18mm ply (and treated with sbr) What would be best adhesive for the job? Thanks
  13. E

    Replace floorboards with 25mm plywood

    Hi all Bathroom have floorbords ontop of joists decided going to strip them all and just replace with 25mm plywood maybe put hardbacker on it…. question can i just put the 25mm ontop of the joists and screw in a line on top plywood right into the joists i think they are 400mm apart and no...
  14. J

    Tiling over plywood subfloor - advice needed

    Hi, DIY home owner here in need of advice. Following a waste pipe leak that's now been fixed, I'm renovating my kitchenette. To start with I wanted to remove the old laminate flooring and put tiles instead. I removed most of the laminate yesterday and found that the 18mm plywood (please can you...
  15. K

    Plywood subfloor preparation questions

    As an introduction, I'm a DIY home owner who has gutted the bathroom in a house built in 1980 due to a burst water pipe. I had a professional water mitigation company remove the damage so I'm sure all of the affected material is now gone. I have decided to put large format tile on the floor in...
  17. H

    Plywood or Chipboard under Backerboard?

    Hi all, Quick question, when installing 6mm backer board onto a floor prior to tiling, would you prefer plywood or chipboard underneath? Also, do you use adhesive and screws to fix the backer board down, or just screws? For reference, it would be 22mm thick either way, and if chipboard it...
  18. M

    18 or 25mm plywood subfloor

    Some advice would be greatly appreciated! So I'm putting in wet underfloor heating and limestone tiles in kitchen/living. The underfloor heating pipes will be laid inside 20mm routed cement coated xps board which can be tiled directly on top off. My question is, would an 18mm plywood subfloor...
  19. H

    Backerboard or Ditra on Plywood?

    Hi everyone, I'm having the majority of the ground floor of my house tiled (35m²) and I'm not sure which way to go from a subfloor / prep perspective. Here is the current set-up: Suspended timber floor at 450mm centres Wet underfloor heating system between joists in a pug screed Tiny bit of...
  21. R

    Advice for plywood tiled wall.

    Hi - we would very much appreciate some advice. In October 2020 we had a sole trader come in to rectify and redo some previous poor work in our bathroom. In the process he tiled two walls (the other walls are not tiled). One of those walls is the actual plaster wall and is believed to be fine...
  22. D

    Can I lay STS backer boards over 6mm plywood?

    Hi everyone. DIYer here looking for some advice. Am tiling a bathroom floor and currently there is existing 6mm plywood well screwed into the floorboards. The floor itself (2.2m x 2.3m) is solid and there is no give in it. However, after reading through these forums, I am aware that I...
  23. R

    Subfloor

    Hi all, after some advice way in advance. We are currently extending arvoss Backnof our house, we have about 40sqm of block and beam on insulation that will be liquid screed. Then when we knock through the existing is timber suspended floor (currently floorboards).we wanted to use porcelain...
  25. O

    Advice on removing tiles from plywood

    Hello, new to tiling. Customer has requested that the previous floor is to be removed in the bathroom. My guess is that the existing tiles have been laid on a plywood floor. how difficult is it to remove the tiles and prep the floor for the new tiles. Some videos I am seeing look like horror...
  26. B

    plywood primer

    What's your tiling question? Pictures can be added.
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