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Discuss Finishing stages of self build.... Question on anti crack options and Adhesive in the Tiling Forum area at TilersForums.co.uk.

  1. craig782

    craig782 Active Member

    Location:
    Dorset
    Hi Guys, first of all thanks for the wealth of info on here.

    I have tried searching to find answers of which I found some but not conclusive

    As the Tile suggests , just in final stages of completing my self build forever home and have a few questions on the tiling of the downstairs

    Currently have 150m2 of underfloor heated cement based screed throughout the ground floor

    As I sprayed the walls and ceiling and other dust etc going to clean screed as best can and prime the floor with an acrylic primer.

    Tiles chosen are Porcelain wood effect planks 150mm x 600 x 10mm

    So questions if you would be so kind .....

    Pretty set on using a Anti crack / Decoupling membrane which most likley to be Durabase but have had the much more cost effective Idrobuild thrown in the mix but can not seem to find much information or comparisons on them. Any preference here?


    Secondly the minefield of adhesives ...
    I am looking at Mapei Keraquick with the Latex Plus. This is the recommended adhesive by the UFH manufacturer but thats as far as it goes... Is there anything that would be recommended / suggest other than this ?


    Thirdly... Adhesive thicknesses between layers
    Using a durabase it is recommended using a 4x4 notched so assuming this will give roughly a 2mm layer of adhesive
    Thickness of layer for tile above Durabase? I was planning on using a 12mm notched and skimming the back of tile but is this correct with this format of tile and ontop the Durabase?

    I need to check my calculations as I have it using much more adhesive than one supplier is quoting ... so would really appreciate any advise on the above so can check.

    Also sorry .. would you recommend a 3mm grout gap for the above ?


    Many thanks, realise thats alot there but once sat down and got carried away ...
     
  2. Localtiler

    Localtiler Trusted Advisor Professional Tiler JOTM Winner Top Contributor

    Location:
    Yorkshire
    Craig,
    A couple of things for starters
    How long has the screed been down and is it a pumped screed ? The underfloor heating must be commissioned before you can do any tiling.

    With regards to crack mat, I haven’t heard of that brand, but I would suggest you look at Tilemaster antifracture Mat. Very thin less than 1mm vs about 6mm for dural Mat, and will use much less adhesive.
    I would look at using slow set adhesive on that area and save your self any additional stresses!
     
    • Like Like x 1
  3. craig782

    craig782 Active Member

    Location:
    Dorset
    Thanks local,

    Had a very quick look as the Tilemaster it looks a similar product to the Idrobuild one. Are these thin anti fractures as good as the Durabase for function and longevity ?

    Screed is LoPro from NuHeat (Mapei rebranded) cement based UFH screed poured myself. Been down since February and has been run and commissioned last few weeks.

    Yeah I think thats good advise on slower set. To be honest was just following recommended UFH guidelines but obviously many adhesives will do the same.. Any recommendations of adhesive and thickness for these tiles would be welcomed

    Thanks again
     
  4. Tom Astley

    Tom Astley Trusted Advisor Professional Tiler

    Location:
    Manchester
    • Like Like x 1
  5. Localtiler

    Localtiler Trusted Advisor Professional Tiler JOTM Winner Top Contributor

    Location:
    Yorkshire
    Not sure what price Tilemaster comes in at for the mat but that Kerakoll Mat looks to be a great price.
     
    • Like Like x 1
  6. Tom Astley

    Tom Astley Trusted Advisor Professional Tiler

    Location:
    Manchester
    The pallet deals are great prices
     
    • Like Like x 1
  7. Tom Astley

    Tom Astley Trusted Advisor Professional Tiler

    Location:
    Manchester
    Here is the idrobuild mat in action this week

    20180809_125047.jpg 20180809_094016.jpg
     
    • Like Like x 1
  8. jcrtiling

    jcrtiling Trusted Advisor Professional Tiler TTA Member Top Contributor

    Location:
    Salisbury
    Didnt @antonio@antonio say that this mat wasnt available in italy as it didnt pass euro test standards . Please correct me if I am wrong
     
    • Agree Agree x 1
    • Informative Informative x 1
  9. antonio

    antonio Trusted Advisor Professional Tiler JOTM Winner Top Contributor

    Location:
    italy
    yes, but it's ok for standard bs.
    I only reported what they told me the kerakoll local agent.
    in the UNI standards nothing is written for antifratture mats.
    it is written only; we recommend using them for large formats.
     
    • Informative Informative x 1
  10. craig782

    craig782 Active Member

    Location:
    Dorset
    Thanks guys..

    Ok so in your honest opinion is the Idrobuild etc as good as the Durabase / Ditra type mats ?

    Were planning on living here for good so although budget is key I dont mind if its worth the extra

    Also if using anti Fracture what thickness should I be allowing for in adhesive above the mat for 150x600x10mm porcelain?

    Is it worth going to a S2? or would the Tilemaster Setaflex S1 be a good route to go down ?

    Thanks again
     
  11. Tom Astley

    Tom Astley Trusted Advisor Professional Tiler

    Location:
    Manchester
    I am using seatflex s1 on my job with limestone
     
    • Like Like x 1
  12. Localtiler

    Localtiler Trusted Advisor Professional Tiler JOTM Winner Top Contributor

    Location:
    Yorkshire
    you Don’t need s2 for this job and I fact you shouldn’t use s2 with ditra or dural. Those two cavity mats will allow for more movement than a thin crack mat. A 12mm trowel will give you around 3 mm bed thickness with that tile size.
     
    • Agree Agree x 1
    • Informative Informative x 1
  13. craig782

    craig782 Active Member

    Location:
    Dorset
    Tilemaster setaflex it is , thanks :thumbsup:

    Ok so levelling ??? Any advice here? Reckon im looking at circa 6000 clips, any recommended type or cost friendly place to purchase

    Thanks in advance
     
  14. Andystiletiling

    Andystiletiling Professional Tiler Top Contributor

    Location:
    Burnley
    Ebay..Shmox clips are good vfm, been using them for a couple of years and can't really fault them, the bases are a little thicker than others but with a 12mm trowel be fine
     
    • Like Like x 2
    • Agree Agree x 1
  15. RayTheTiler

    RayTheTiler Professional Tiler

    Location:
    home
    if you use leveling clips make the addy a bit more runny and 12 mm notch will do but for a solid bed so heat passes better a screeding pin bar set at 10 mm and scratch a 3 mm trowell over back of the tile
     
    • Informative Informative x 1
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