Self levelling screed

Discussion in 'Other Trades Talk' started by lazyfrau, Jul 23, 2018.

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  1. lazyfrau

    lazyfrau New Member

    Hi, tried this on builder’s talk, no replies so thought I’d try it here.

    A question from a newby.
    Floor under the fridge v uneven. If I use self levelling screed will it:
    A. stick to wooden baton?
    B. Set if one area is about 3-4cms deep?
    I only want to cover about 1sq m
    Thanks.
     
  2. DaveF

    DaveF Active Member

    It's difficult to suggest anything without seeing the problems. Do you have a photo?
     
    KIAB likes this.
  3. KIAB

    KIAB Super Member

    We like our photo's.
     
  4. chippie244

    chippie244 Super Member

    Why not just level it using the built in leveling feet?
     
    lazyfrau likes this.
  5. lazyfrau

    lazyfrau New Member

    Hight dfference is too great, the little feet started to get a bit wobbly.
     
  6. lazyfrau

    lazyfrau New Member

    Sorry no pics at the mo.
     
  7. CGN

    CGN Screwfix Select

    Beer mats aside, a few shims of ply screwed down to allow the feet to be adjusted

    Or, screw 6mm tile backer board down (need to stick it with adhesive too) then self level over that after creating a dam around the perimeter.
     
  8. DIYDave.

    DIYDave. Screwfix Select

    I’ve only used Mapei Self Leveler myself, it’s a nice drop of gear :)

    Max pour depth in one hit is 25mm but, no problem adding additional layers after allowing each layer to cure

    When you ask will it stick to wooden batten, do you mean floorboards ?

    As fridge is going over this section it doesn’t really matter if it sticks or not, it won’t be going anywhere ;)

    If you was then laying laminate over leveller, then yep, you want it well bonded so additional prep

    Need to plug any holes or gaps between floorboards / batten (?) before you pour otherwise you will loose the mix, it goes down pretty runny

    Can use a no nails type gun adhesive or spray foam to fill gaps and holes

    As above suggestions, can always level floor with say a 25mm pour then make up finished height with timber, cement board, etc
     
  9. CGN

    CGN Screwfix Select

    Why risk it delaminating from floorboards then fudge about putting cement board on top?

    Cement board then leveler on top is the correct way.

    A confident delivery Dave, but content is s***e :D
     
    KIAB likes this.
  10. DIY womble

    DIY womble Well-Known Member

    You have a certain talent for making friends , top advice as usual though
     
    CGN likes this.
  11. Astramax

    Astramax Super Member

    Why is the floor that uneven, has it collapsed? treat the cause not the problem!;)
     
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  12. DIYDave.

    DIYDave. Screwfix Select


    How’s the SL gonna delaminate when there’s a fridge plonked on top of it ?

    Surely weight and gravity will keep it in place ?

    Can always SBR floor 1st to ensure a good bond

    If floor is that wonky, (OP has said ‘very uneven’) you place cement board over floor then self leveller, your gonna have voids under cement boards and possibly some rock n rollin

    Several ways to do most jobs, yeah some right, some wrong, some just personal preference

    Thanks for the good and bad feedback though, great to hear there’s some postitives to my post :D
     
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  13. Astramax

    Astramax Super Member

    Place a chunk of wood under the offending foot, level it up and forget about it, job done.
     
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  14. Astramax

    Astramax Super Member

    Best suggestion yet, simple and to the point, why over complicate simple challenges!
     
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  15. DIY womble

    DIY womble Well-Known Member

    Sheet of tesco plastic bags , always a bag of multi hanging around,
     
  16. CGN

    CGN Screwfix Select

    As I said, you put adhesive under cement board before screwing it down.

    What happens when the fridge is removed?

    Either way, it was a brave attempt Dave :D
     
  17. CGN

    CGN Screwfix Select

    Don't push it :D
     
    DIY womble likes this.
  18. DIYDave.

    DIYDave. Screwfix Select


    So why is it recomended when using Hardie Boards (as an example), over uneven floorboards, that you lay a thin bed of tile adhesive over floorboards before placing Hardie Boards ?

    Takes up any unevenness in floorboards and gives the Hardie Board a solid, level base to sit on with no voids - perhaps ?

    So if OPs floor is very uneven, why mess with blobs of grip fill to try and fix/level cement board before laying self leveler

    Why risk having a void under cement board and SL just where a fridge foot is gonna land

    Anyway, whatever, we all have differant ways, as long as a good result, who give a flying f uck
     
  19. CGN

    CGN Screwfix Select

    Is it the time of month Dave?

    Go back and read my first post. Check the 'brackets'.

    Hot weather and Gin is a good/bad combo!
     
  20. CGN

    CGN Screwfix Select

    I get on with most people Womble. I'm actually quite quiet and sensitive.
    I'm the first to admit, that I don't know it all, and I also have a belief system!
    I also have an ego, and I will exercise it when I believe necessary! :D
     
    Jord86, KIAB and Astramax like this.

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