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<p class="MsoNormal"><span style="color:#1F497D">Hi Amy,<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">For the windows, your baseline model should incorporate the existing conditions per table G3.1 of ASHRAE Std. 90.1.
<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">The metal panels are just being added to the exterior of the existing skin? They are not likely to do anything to the existing wall U-value. You could do a hand calculation to determine the overall U-value with
the addition of the panel, but I imagine it will be negligible. However, it would affect the absorptance/reflectivity. Depending on what percentage of the wall is being covered, you could look into creating two wall assemblies: one with the existing skin,
and one with the metal panels on the outside (there is a material for “steel siding”) and model two different Ext. Colors (absorpt.). Table 3 in the help file has Solar Absorptance of various exterior surfaces. This is a lot of work for probably very little
variation in model results.<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 am curious, if you are considering going LEED for this project, given the amount of design, does it fall under the NC (Major renovation) category? If it is under commercial interiors, I would imagine you will
see more LEED points for EAc1.3 through option 1 than you will by building an energy model for LEED.
<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">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">Ross Farris,
</span></b><span style="font-size:9.0pt;font-family:"Arial","sans-serif";color:black">CEA</span><b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black"><o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">Energy Analyst</span><span style="font-size:12.0pt;font-family:"Times New Roman","serif";color:black"><br>
</span><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">Regional Energy Director<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><a href="http://www.glumac.com/"><span style="font-size:12.0pt;font-family:"Times New Roman","serif";color:black;text-decoration:none"><img border="0" width="253" height="30" id="Picture_x0020_1" src="cid:image002.jpg@01CE046F.6E8453D0" alt="http://www.glumac.com/glumacsig.gif"></span></a><span style="font-size:12.0pt;font-family:"Times New Roman","serif";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><a href="http://www.twitter.com/glumacengineers"><span style="color:black;text-decoration:none"><img border="0" width="13" height="13" id="Picture_x0020_4" src="cid:image004.jpg@01CE046F.6E8453D0" alt="cid:image001.png@01CC45FA.A3365810"></span></a><a href="http://www.facebook.com/pages/Glumac/213797265436"><b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black;text-decoration:none"><img border="0" width="14" height="14" id="Picture_x0020_5" src="cid:image006.jpg@01CE046F.6E8453D0" alt="cid:image004.jpg@01CC98A3.24F9BEA0"></span></b></a><a href="http://www.linkedin.com/company/34034"><span style="color:black;text-decoration:none"><img border="0" width="13" height="13" id="Picture_x0020_6" src="cid:image008.jpg@01CE046F.6E8453D0" alt="cid:image002.jpg@01CC45FA.A3365810"></span></a><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Arial","sans-serif";color:black">150 California Street, 3rd Floor</span><span style="font-size:12.0pt;font-family:"Times New Roman","serif";color:black"><br>
</span><span style="font-size:9.0pt;font-family:"Arial","sans-serif";color:black">San Francisco, CA 94111</span><span style="font-size:12.0pt;font-family:"Times New Roman","serif";color:black"><br>
</span><span style="font-size:9.0pt;font-family:"Arial","sans-serif";color:black">T. 415.398.7667 ext.4083 F. 415.398.0596<br>
</span><b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">Thinking. Inside the building.<o:p></o:p></span></b></p>
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<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<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""> Harmon, Amy [mailto:aharmon@sbmce.com]
<br>
<b>Sent:</b> Wednesday, February 06, 2013 12:50 PM<br>
<b>To:</b> equest-users@lists.onebuilding.org<br>
<b>Subject:</b> [Equest-users] Existing Building - New Windows<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I’ve been scouring the archives for answers, but did not find my exact scenario.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I have a 10 story dormitory that was built in the early 60’s. We’re looking to submit the building to LEED. We’re removing the existing 2 pipe FCU system serving the perimeter rooms as well as an AHU that conditions the core spaces for
the whole building, with a 4 pipe FCU system along the perimeter rooms (natural windows via operable windows) and an AHU for the core spaces in the building.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">A couple questions, the architect is replacing all the windows in the building. Since the proposed case windows will be what we’re designing to, what windows do I use for my baseline…existing as it stands today or the ASHRAE minimum found
in Table 5.5? <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The architect is also adding metal panels to portions of the building to dress it up, how do you go about adding the metal panels (UNINSULATED) to the existing wall used in the baseline?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks for helping!<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b>Amy Harmon<o:p></o:p></b></p>
<p class="MsoNormal"><b><span style="color:#7030A0">Mechanical Engineer</span></b><span style="color:#7030A0"><o:p></o:p></span></p>
<p class="MsoNormal">Scheeser Buckley Mayfield LLC
<span style="font-size:10.0pt"><o:p></o:p></span></p>
<p class="MsoNormal">1540 Corporate Woods Parkway<o:p></o:p></p>
<p class="MsoNormal">Uniontown, OH 44685<o:p></o:p></p>
<p class="MsoNormal">Office: (330) 896-4664 x107<o:p></o:p></p>
<p class="MsoNormal">Direct: (330) 526-2707<o:p></o:p></p>
<p class="MsoNormal">Fax: (330) 896-9180<o:p></o:p></p>
<p class="MsoNormal"><a href="mailto:aharmon@sbmce.com" title="blocked::mailto:aharmon@sbmce.com
mailto:aharmon@sbmce.com">aharmon@sbmce.com</a><o:p></o:p></p>
<p class="MsoNormal"><a href="http://www.sbmce.com/" title="blocked::http://www.sbmce.com/
http://www.sbmce.com/">www.sbmce.com</a><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:1.0in"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-family:"Clarendon Cd"">Columbus Office (614) 448-1498<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:13.5pt;font-family:Webdings;color:#008040">ü</span><span style="font-family:"Arial Narrow","sans-serif";color:navy">
</span><span style="font-size:10.0pt;font-family:"Arial Narrow","sans-serif";color:#008040">Please consider the environment before printing this email.</span><span style="font-family:"Clarendon Cd""><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:7.5pt">Thank you</span><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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