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Housing - New Build: Best Cavity Wall Insulation

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    • CommentAuthorCWatters
    • CommentTimeMay 17th 2011
     
    I wonder how this worked out... 1.5 meters of leca under concrete floor...

    http://www.saint-gobain.co.uk/news/Leca%20insulation%20fill%20does%2010%20days%20work%20in%20an%20hour.aspx
    • CommentAuthorJulio
    • CommentTimeMay 17th 2011
     
    Hi Tom,

    Where did you get your information regarding the thermal performance of the LECA when compared to the polystyrene? Would expanded glass be any better?

    Thanks
    • CommentAuthortony
    • CommentTimeMay 17th 2011
     
    no -- polystyrene and other insulation products are at least an order of magnitude better insulators than either foamed glass or LECA.

    This may seem sad but it is why they are commonly used to insulate things.
    •  
      CommentAuthorfostertom
    • CommentTimeMay 17th 2011 edited
     
    See http://www.netweber.co.uk/uploads/tx_weberproductpage/06_500_Leca_insulation_fill_01.pdf

    CWatter's link above - v gd - Leca is a wonder material! AFAIK bagged Leca costs only a bit more than sharp aggregate (prob much less when tankered to site like that) - and look at all the things you can do with it!

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