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    Hello everyone!
    I would like to know the maximum U-value that I could use for installing wall or floor in London.
    I show you the Italian U-value table.

    Zona climatica= climatic zone
    struttura opache verticali= vertical wall
    struttura opache orizzontali=floor
    Exists a UK table like this?

    Thanks you in advanced!
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    Limiting U values for the elements you requested under 2013 Part L:

    0.18 for a wall
    0.13 for a floor

    http://www.planningportal.gov.uk/bui...cuments/partl/
    http://www.celotex.co.uk/about/exper...ng-regulations

    So you will need a lot more insulation to achieve those U-values than for the U-values listed in the table you provided.
 
 
 
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