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Green Building Bible, Fourth Edition
Green Building Bible, fourth edition (both books)
These two books are the perfect starting place to help you get to grips with one of the most vitally important aspects of our society - our homes and living environment.

PLEASE NOTE: A download link for Volume 1 will be sent to you by email and Volume 2 will be sent to you by post as a book.

Buy individually or both books together. Delivery is free!


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    • CommentAuthorhepm
    • CommentTimeJan 17th 2022
     
    Will be installing a 4m² electric underfloor heating mat to an upstairs en-suite/wet room, the room below is the living room so will be heated.

    I've got some left over 70mm Celotex insulation boards that could be installed between the 170mm floor joists followed by 22mm chipboard, 6mm fibre cement tilebacker, UFH matt then porcelain tiles.

    Does this sound suitable?
    •  
      CommentAuthordjh
    • CommentTimeJan 17th 2022
     
    Personally I would use acoustic mineral wool rather then rigid insulation. Easier to install and better for noise deadening.
    • CommentAuthorhepm
    • CommentTimeJan 17th 2022
     
    That's also an option as I have some 100mm/50mm superglass multi acoustic roll left over as well.

    I was thinking the rigid insulation would be more suitable for retaining the heat from the UFH?
    • CommentAuthorphiledge
    • CommentTimeJan 17th 2022
     
    Id use ply rather than chipboard as the chipboard will swell and fall apart at the mere thought of a leak. If its intended as a wet room, there should be a tanking membrane in your build up as tiles on a wooden floor wont be watertight.

    When you get your UFH mat check the thickness of the cap over the end of the wire and the temp sensor duct will fit in the adhesive bed. The Klima ones we used didnt and I had to grind slots in the back of the tiles to sit over the cap and duct.
    • CommentAuthorhepm
    • CommentTimeJan 17th 2022
     
    Posted By: philedgeId use ply rather than chipboard as the chipboard will swell and fall apart at the mere thought of a leak. If its intended as a wet room, there should be a tanking membrane in your build up as tiles on a wooden floor wont be watertight.

    When you get your UFH mat check the thickness of the cap over the end of the wire and the temp sensor duct will fit in the adhesive bed. The Klima ones we used didnt and I had to grind slots in the back of the tiles to sit over the cap and duct.


    Yes, the floorformer/floor/walls are going to be tanked using a impey waterguard membrane
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