Big Jimbo Posted February 9, 2021 Share Posted February 9, 2021 could anybody please point me in the direction of a decent free online "U" value calculator..... Thanks in advance Link to comment Share on other sites More sharing options...
A_L Posted February 9, 2021 Share Posted February 9, 2021 @Big Jimbo, here is one, https://www.changeplan.co.uk/u_value_calculator.php 1 Link to comment Share on other sites More sharing options...
Gone West Posted February 10, 2021 Share Posted February 10, 2021 http://vesma.com/tutorial/uvalue01/uvalue01.htm https://www.ubakus.com/en/r-value-calculator/?&lang=en Have a play. 1 Link to comment Share on other sites More sharing options...
Big Jimbo Posted February 10, 2021 Author Share Posted February 10, 2021 Thanks to you both. Link to comment Share on other sites More sharing options...
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