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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='font-family:"Optima LT"'>Hi All,<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Optima LT"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Optima LT"'>I am having trouble fully comprehending ASHRAE 90.1 Appendix G, referring to existing building envelopes. The building I am modeling was previously a maintenance shop with practically zero insulation. In addition to the basic building envelope, the southern facing exposure is essentially 4 large garage doors.<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Optima LT"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Optima LT"'>The entire envelope was gutted and replaced with a brick/concrete wall and corresponding insulation. In addition to the envelope upgrade, the entire interior was remodeled to be utilized as an office building. Appendix G leads to me to believe that I should be modeling the building envelope as if the garage doors are still in place. i.e. the offices will have a garage door modeled as the wall type with a significant amount of infiltration. This seems counter-intuitive to me, but I want to verify that I am doing it correctly.<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Optima LT"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Optima LT"'>Any input would be helpful, Thanks.<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Optima LT"'><o:p> </o:p></span></p><p class=MsoNormal><b><span style='font-family:"Optima LT";color:#1A2A6C'>Daniel Kaler<o:p></o:p></span></b></p><p class=MsoNormal><b><span style='font-family:"Optima LT";color:#1A2A6C'>Energy Engineer, EIT<o:p></o:p></span></b></p><p class=MsoNormal><b><span style='font-size:6.0pt;font-family:"Optima LT";color:#1A2A6C'><o:p> </o:p></span></b></p><div style='mso-element:para-border-div;border:none;border-top:double #002060 2.25pt;padding:1.0pt 0in 0in 0in'><p class=MsoNormal style='border:none;padding:0in'><b><span style='font-size:6.0pt;font-family:"Optima LT";color:#1A2A6C'><o:p> </o:p></span></b></p></div><p class=MsoNormal align=center style='text-align:center'><b><span style='font-size:12.0pt;font-family:"Optima LT";color:#1A2A6C'>MEP ASSOCIATES<o:p></o:p></span></b></p><p class=MsoNormal align=center style='text-align:center'><b><span style='font-size:10.0pt;font-family:"Optima LT";color:black'>engineers | consultants | commissioning<o:p></o:p></span></b></p><p class=MsoNormal align=center style='text-align:center'><span style='font-size:8.0pt;font-family:"Optima LT";color:black'>MEP Associates, LLC | 2720 Arbor Court | Eau Claire, WI 54701<o:p></o:p></span></p><p class=MsoNormal align=center style='text-align:center'><span style='font-size:8.0pt;font-family:"Optima LT";color:black'>Phone: 715.832.5680 | Fax: 715.832.5668 |www.mepassociates.com</span><span style='font-size:8.0pt;font-family:"Optima LT"'><o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>