1. Visiting from the US? Why not try DIYnot.US instead? Click here to continue to DIYnot.US.
    Dismiss Notice

Preparing sub floor for Screed

Discussion in 'Floors, Stairs and Lofts' started by Paulymase21, 6 May 2020.

  1. Paulymase21

    Paulymase21

    Joined:
    3 May 2020
    Messages:
    4
    Thanks Received:
    0
    Country:
    United Kingdom
    Hi, I’m currently trying to rectify a lot of poor workmanship and corner cutting by our previous builder.
    In the attached photo I have removed poorly laid DPM and insulation boards with a view to starting again.
    Also there is no DPM under the slab.
    What I am considering is rather than attempt to notch out the back of the insulation boards over the multitude of pipe work is to lay an extra deep 4B1C6502-443E-4968-9133-F8C5C1B29516.jpeg sand blinding layer over the pipe work and rule it off level, then lay my DPM over the sand followed by the insulation boards. I will then be installing a wet underfloor heating system followed by the appropriate screed.
    Would that be an acceptable procedure??
    Many Thanks
     
  2. Sponsored Links
  3. bobasd

    bobasd

    Joined:
    2 Dec 2017
    Messages:
    2,368
    Thanks Received:
    435
    Country:
    United Kingdom
    Is there enough depth for what you propose - why not make a drawing of a full scale section view using the next room FFL as a benchmark?
    Maybe there's ample hot water piping in that compartment already?
    I cant see the whole floor or the depth at the threshold but you might be better off constructing a suspended floor with a 3/4" ply surface?
     
    Last edited: 7 May 2020
  4. Paulymase21

    Paulymase21

    Joined:
    3 May 2020
    Messages:
    4
    Thanks Received:
    0
    Country:
    United Kingdom
    There’s plenty of depth. I Just wanted to see if anyone would flag a reason for not using compacted sand over the pipe work?? As long as I use a DPM on top of the sand I can’t really see an issue. Appreciate your feedback though, Thanks.
     
  5. DIYnot Local

    DIYnot Local

    Joined:
    3 Sep 2019
    Country:
    United Kingdom

    If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

    Select the supplier or trade you require, enter your location to begin your search.


    Are you a trade or supplier? You can create your listing free at DIYnot Local

     
Loading...

Share This Page