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Tell how efficient UPVC double glazing is

Discussion in 'Windows and Doors' started by stevepbuk, 2 Sep 2020.

  1. stevepbuk

    stevepbuk

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    Hi, I got my house fitted with UPVC double glazing in 2009. Is there any way of telling how efficient they are. I cannot remember getting anything to tell me at the time. I know more recently all windows have had to be C or above but I am not sure when that took affect.

    Thanks

    Steve
     
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  3. Notch7

    Notch7

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    They prob had to comply with Part L which would've been centre pane value only.

    I expect the glass is pilkington K with 16mm or 20mm cavity. Aluminium spacer. No argon gas fill.

    u value of 2.0
     
  4. crank39

    crank39

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    Wasn't it April 2002 all that C rated 24mm minimum thickness low e business came out, think the u value thing was more recent still
     
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