Tuesday, February 7, 2012

--window r-value calc--



   window r-value calc--


   r-value per-atmo, per-barrier, per-volume calc--

 r-value of barrier 1, + atmo # 1, + barrier # 2 =  r-value per-cubic inch,  x  cubic inches  =  total r-value

more later--

         --out of time at the library today.... best wishes, john kruschke--

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