Ufh warm-up dcm pro - advice please

Discussion in 'Subfloor Preparation' started by Paul, Oct 12, 2017.

  1. Paul

    Paul Active Member

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    Hi guys client has changed his ufh spec and is getting warm up dcm-pro installed , it's going on top of 6mm ply , the original spec was just the cables on the ply .
    I have already bought 20 bags of mapei renovation
    Will I need to prime this ?
    Answer from warm up was no .
    Answer from mapei on the phone was yes
    Answer from mapei by email/message was no
    Has anyone done prep over the dcm pro?
    The videos certainly show a self levelling compound going down without primer although iv no idea what brand

    Any help or advice much appreciated , prep is due to start this weekend with lvt going down a week later
     
  2. merit

    merit Well-Known Member

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    Can't see it binding very well without a primer. What's their reason for not using a primer


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  3. Paul

    Paul Active Member

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  4. merit

    merit Well-Known Member

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    Lol, I would go back and ask them why can't you use a primer. I would back level it flex without a primer. That stuff is impossible to scrape off the floor. Not sure about renovation tho


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  5. AngryAndy

    AngryAndy Well-Known Member

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    Mapei tech support were bang on and were really helpful.
     
  6. Go2Matt

    Go2Matt Member

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    is a decoup membrane going down? Sorry assuming tiles.

    I also thought cable direct onto Ply was a no no, I would always put a min of 4mm or 6mm Wedi board down.
     

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