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215 Block on the flat U Value

  • 07-04-2010 7:06pm
    #1
    Donie75
    Registered Users, Registered Users 2 Posts: 1,110 ✭✭✭


    Hi,
    I'm trying to fill in my Declaration of works form for my HES grant. My 1950's semi has solid block walls. They are 215 blocks on the flat with a dashed exterior and a plaster finish inside. I need the original U Value of this wall type. Can anyone help?
    Also, I just got the house drylined using Xtratherm Thin-R XT/TL. How do I calculate the new U Value of my wall? A 50mm board was used.
    The Xtratherm guide says that the U value when used with a 215 block is 0.36 but I think this may not refer to 215 on the flat.
    Any help would be greatly appreciated.


Comments

  • #2
    sinnerboy
    Closed Accounts Posts: 5,433 ✭✭✭sinnerboy


    Your SEAI registered installer must do this for you . You the grant assisted homeowner are not expected to do this .

    But if you wish to do it anyway log onto the Xtratherm website and download their free U Value calculator .


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