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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='color:#1F497D'>Hey Morgan:<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>As important as those measurements are the numbers that count are comparative energy usage and comfort. Those are the measures of true window ‘performance’ in my opinion. A 50% decrease in air leakage may or may not significantly impact energy usage and/or comfort. We have been involved in a number of window retrofit projects and in the real world what they save and occupant comfort are what has meaning AND VALUE.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>I urge you to at least include, and I believe they should be the principal items, actual energy comparative usage information and comfort. I feel that it is a fallacy that there is a direct straight line <b>meaningful and impactful</b> relationship between air leakage, u-value, and shgc, and, actual energy usage and comfort except in the most gross sense. Location, use, individual window differences that do not show in any of those reported measurements, and, installation our experience shows as more important.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Thanks,<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Andy <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div><p class=MsoNormal><span style='color:#1F497D'>Andy Hoover<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Principal<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>The BEST Consultant, Inc.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Cell: 678-793-1159<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Office: 678-200-7648<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Fax: 678-827-0574<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Email: andyhoover@thebestconsultant.com<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Web: www.thebestconsultant.com<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Times New Roman","serif";font-variant:small-caps;color:#1F497D'>LEGAL DISCLAIMER<br>The information transmitted is intended solely for the individual or entity to which it is addressed and may contain confidential and/or privileged material. Any review, retransmission, dissemination or other use of or taking action in reliance upon this information by persons or entities other than the intended recipient is prohibited. If you have received this email in error please contact the sender and delete the material from any computer.</span><span style='font-size:9.0pt;font-variant:small-caps;color:#1F497D'><o:p></o:p></span></p></div><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> bldg-sim-bounces@lists.onebuilding.org [mailto:bldg-sim-bounces@lists.onebuilding.org] <b>On Behalf Of </b>Morgan Heater<br><b>Sent:</b> Wednesday, February 01, 2012 2:37 PM<br><b>To:</b> bldg-sim@lists.onebuilding.org<br><b>Subject:</b> [Bldg-sim] Window Retrofit Infiltration Data?<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Hi – I’m looking for papers where people have measured window performance before and after retrofits, such as interior & exterior storm windows, and weatherstripping, caulking, and sealing. Ideally papers that include air leakage testing pre and post retrofit and u-value and shgc information.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Thanks!<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Morgan Heater, P.E.<o:p></o:p></p><p class=MsoNormal>BEMP, LEED AP<o:p></o:p></p><p class=MsoNormal>morgan@ecotope.com<o:p></o:p></p><p class=MsoNormal>206-322-3753 ext 209<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>