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  • FIRST POST
    • kieraowl
    • By kieraowl 14th Jun 17, 5:28 PM
    • 24Posts
    • 2Thanks
    kieraowl
    Windows - should I be worried about freezing?
    • #1
    • 14th Jun 17, 5:28 PM
    Windows - should I be worried about freezing? 14th Jun 17 at 5:28 PM
    I'm about to have an extension done in my house. We're currently have your bog standard, average rear windows, probably put in 20 years ago, on a north-east aspect. The architects' plans replace these with very large sliding doors AND window lights above. The intended supplier is Smart Systems windows (I am trying to get further details out of my builder, who is less than forthcoming over the detail). However, I'm struggling to get any information on energy efficiency ratings on their website: I do have a likely U-value of 1.5 to 1.7 though.

    I am really concerned that I'm going to be cold, however. (I'm a nesh southerner, living in Sheffield). The room doesn't get much solar gain except very partially first thing. Ceilings are also going to be quite a lot higher. New heating system of wet underfloor heating under tile is intended to compensate - but will this be enough?

    Windows experts, please help!
Page 1
    • MX5huggy
    • By MX5huggy 14th Jun 17, 9:21 PM
    • 4,044 Posts
    • 2,643 Thanks
    MX5huggy
    • #2
    • 14th Jun 17, 9:21 PM
    • #2
    • 14th Jun 17, 9:21 PM
    Your right to be concerned. You need to calculate the heat losses and make sure there is enough capacity it the underfloor heating to cope with -5 outside. A plumber is probably not up to this.
    • southcoastrgi
    • By southcoastrgi 15th Jun 17, 12:17 AM
    • 5,164 Posts
    • 2,996 Thanks
    southcoastrgi
    • #3
    • 15th Jun 17, 12:17 AM
    • #3
    • 15th Jun 17, 12:17 AM
    The UFH should have been worked out from the drawings showing all the relevant information, this will give the installer a drawing of the pipework
    I'm only here while I wait for Corrie to start.

    You get no BS from me & if I think you are wrong I WILL tell you.
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