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![U -value for single, double set in metal or timber frame [10]. | Download Scientific Diagram](https://www.researchgate.net/publication/245506563/figure/fig7/AS:298317511708672@1448135845253/U-value-for-single-double-set-in-metal-or-timber-frame-10.png "U -value for single, double set in metal or timber frame [10]. | Download Scientific Diagram")
U -value for single, double set in metal or timber frame [10]. | Download Scientific Diagram
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Windows: U values, Psi values & g values
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