screed

  1. S

    Anhydride screed problems

    Hi everyone I’m after a bit of advice. I’ve just removed the floor tiles in our on suite. After we noticed that a couple had started lifting. This is the second time this has happened since we built our house about 12 years ago. The first time the happened about 6 years back the tiler...
  2. guediver

    Grooved dry screed boards

    Good afternoon, Does anyone have experience of using grooved dry screed boards? (Bonus points if on suspended floor) There seems to be a few brands/products about (ThermRite, Profix, ProWarm), but I can’t see anyone talking about actually using them (literally zero mentions across various...
  3. Qwerty89

    Best practice for a large (120sqm) tiling job

    Hi all I’m so glad to have stumbled upon this forum, which seems to be a treasure trove of advice. I wanted to put my own situation up, and ask for some advice from the specialists on here! I’ve added the details, as hopefully this helps others too… Situation Ground floor renovation job...
  4. Sprotty

    Cracks bridging screed and blockwork

    We are currently at the planning stage for a floor with bifold windows and wet underfloor heating. Basically the tiles near the windows will need to go over the screed and onto a concrete block on the perimeter (red arrows). I'm concerned that the screed with the insulation under it is likely...
  5. L

    Large format tiles on liquid screed

    Hi folks, We're having our downstairs tiles installed soon, about 82m2 of 1.2x1.2m square porcelain tiles onto an anhydrite liquid screed, with UFH. We've had reasonable quotes from two tilers, but they looking to do things a little differently, and we're not sure on the best approach. Both...
  6. G

    Expansion Joints in Floor Screed

    Hi, Looking for some advice regarding tiling over expansion joints in floor screed. I’m getting conflicting information as to wether I can tile over the joint or that I need to install expansion joints. My issue is that I’m laying herringbone style wood effect tiles and want to continue them out...
  7. IsmailYPatel

    Underfloor heating screed with Grano

    Hi. I'm after some advice. Need to screed above my underfloor heating pipes. Some rooms have overlay boards and some rooms have new concrete and the floor will be chased/milled out for pipes to go in. Is it possible to make screed with grano, sand, lime, concrete fibres and cement? Make a wet...
  8. S

    Kitchen floor screed options Schonox FPL Plus vs Mapei 3240

    Evening all, newbie post regarding self levelling material. we have approx 36m2 of kitchen/diner to level before 'karndean' type material being laid. I have removed multiple layers of blown/unbonded screed and now at concrete level, which is anywhere from 3mm to 50mm out of level, making it...
  9. D

    Floorboard to screed transition

    Hi I am gping to be tiling a large ground floor flat through out The passage is floorboard and rest of house is screeded however the screed needs levelled what would be best way to prep floor as floor transitions from floorbard to screed. Is 6mm hardiebacker screwed into floor boards then...
  10. A

    Marmoleum on sand cement screed

    Can I lay marmoleum tiles directly onto a sand and cement screed? Or is it better to lay down a plywood subfloor on top of it? It will be a freshly lad screed by the way with water UFH.
  11. M

    Screed/Overboarding Question

    Hello all. I've got a question for people who know better on what to do with my floor. I thought it was T&G over substantial joists so my plan was overboard with ply, seal the joins and tile as I have for previous projects. However, I've gone to lift a board (as I want a radiator pipe putting...
  12. T

    Which screed would you recommend for wet UFH ?

    Hi folks, Just looked at a conservatory tiling job. Wet UFH system, set into sand and cement approx 50mm thick. Fitted 2 months ago so should be cured. Heating yet to be commissioned. The sand and cement is dog rough, going to need prepping to level the floor ready to receive 500mm x 500mm...
  13. J

    Replacing screed - help needed

    I've got a very thin layer (3 or 4 mm) of screed over old bathroom tiles which we had link flooring put over. Unfortunately the toilet leaked and the lino was damaged, I've pulled it up and found the screed below is slightly damaged. I've cracked and pulled up the offending bits but am I...
  14. A

    Is a dry enough screed actually perfectly dry?

    I had anhydrite screed laid 28 days ago, commissioned ufh 21 days ago and have proceeded to test with a hygrometer for RH test. Its showing 45% which seems low given the threshold is 75%. The question comes from when I move the odd item like a cardboard box, where the tape has been in contact...
  15. Joel DIY

    Expansion joints in screed

    Hello fellow tilers forum community, I have laid underfloor heating mats on top of insulation boards and poured screed over the top of the mats. I forgot to add any expansion joints and am concerned about what to do. Any advice will be appreciated before I move forward with tiling the floors...
  16. P

    Cracks in travertine tiles laid on Gyvlon screed over UFH

    Heeelp!!! I've seen some old posts about this but nothing recently. I have 120sqm travertine over the whole of the ground floor. It was laid over wet UFH and Gyvlon screed about 12 months ago. Cracks started appearing about 5 months ago and I now have cracks in MANY places - both across...
  17. L

    Tiles that have removed the screed when removing the tiles

    Hi all I hope you are well. After a bit of advice. I am installing some plumbing under the floor in a kitchen which is getting re done. I did to the client I would take the tiles up do I can run my pipes etc. Any how, half the kitchen is 12mm plywood screwed down every 100 on to floorboards. I...
  18. S

    Anhydrite screed prep

    A simple question I'm struggling with. Up front, it's a self build - my 4th, so done a fair bit but 1st time using anhydrite. Screed down for 4 years+. Prepping for ditra. Started sanding with 40 grit using 6"festool orbital to remove laitance - solid - (so may have to use diff tool). Issue I...
  19. Troystar

    Floor tiling on screed with no visible cracks

    Could someone give me some advice please. I'm a landscaper by trade and have laid a few porcelain patios. Now I know interior tiling is not the same but would like to have a go at my downstairs toilet floor. House was built early 2000s I think its screed but could poss be the wet slurry with no...
  20. N

    Anhydrite screed prep

    Hi guys technical question hoping maybe you have an answer as I have never came across this before we have an anhydrite screed floor we sanded it hoovered then sealed twice came In Today and the sealer looks like it’s peeling in certain areas have u ever had this the floor is completely dry...
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