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<div class=Section1>
<p class=MsoNormal><span style='color:#1F497D'>What’s the best course of action
if I don’t have enough unconditioned space to get below 25,000 sf?<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>
<div>
<p class=MsoNormal><i><span style='color:#1F497D'>Cara Martin, </span></i><span
style='font-size:10.0pt;color:#1F497D'>LEED AP BD+C</span><i><span
style='color:#1F497D'><o:p></o:p></span></i></p>
<p class=MsoNormal><b><span style='color:#1F497D'>Novus Engineering, P.C.<o:p></o:p></span></b></p>
<p class=MsoNormal><b><span style='font-size:10.0pt;color:#1F497D'>25 Delaware
Ave.<o:p></o:p></span></b></p>
<p class=MsoNormal><b><span style='font-size:10.0pt;color:#1F497D'>Delmar, New
York 12054<o:p></o:p></span></b></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:#1F497D'>518.439-8235<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:#1F497D'>518.439-8592
(fax)<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:#1F497D'>CMartin@novusengineering.com<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"'> Dana Troy
[mailto:DTroy@glumac.com] <br>
<b>Sent:</b> Monday, August 02, 2010 10:10 AM<br>
<b>To:</b> Cara Martin<br>
<b>Subject:</b> RE: [Bldg-rate] Baseline System Selection for Energy Modeling
for LEEDEAc1<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='color:#1F497D'>Per App G, it is 25k of <u>conditioned</u>
space, so find some unconditioned space in your building and justify removing
it from the square footage calculations. <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'>-Dana<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='font-family:"Arial Narrow","sans-serif";
color:#1F497D'>Dana Troy<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial Narrow","sans-serif";
color:#1F497D'>Senior Energy Analyst<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial Narrow","sans-serif";
color:#1F497D'>GLUMAC | 503.227.5280<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"'> Cara Martin
[mailto:CMartin@novusengineering.com] <br>
<b>Sent:</b> Monday, August 02, 2010 7:09 AM<br>
<b>To:</b> bldg-rate@lists.onebuilding.org<br>
<b>Subject:</b> [Bldg-rate] Baseline System Selection for Energy Modeling for
LEEDEAc1<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Hello,<o:p></o:p></p>
<p class=MsoNormal>I am curious of others’ experiences with the USGBC/GBCI in
terms of modeling review of the baseline system selection for EAc1 under LEED
2009 (v3) using ASHRAE 90.1-2007, Appendix G. I am currently modeling a
roughly 25,000 square foot, 2-story building to be used for light commercial
and retail space. The building is pursuing Core & Shell certification
and will house multiple tenants. The HVAC system for the proposed
building will be packaged roof top units with natural gas-fired furnaces and DX
cooling. <o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>As per Appendix G, the HVAC system for the baseline building
is determined by size and number of stories as follows:<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo2'><![if !supportLists]><span
style='mso-list:Ignore'>1.<span style='font:7.0pt "Times New Roman"'>
</span></span><![endif]>Nonresidential and 3 floors or less and < 25,000
s.f. = System 3 (packaged RTU, constant volume, DX cooling, fossil fuel furnace)<o:p></o:p></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo2'><![if !supportLists]><span
style='mso-list:Ignore'>2.<span style='font:7.0pt "Times New Roman"'>
</span></span><![endif]>Nonresidential and 4-5 floors and < 25,000 s.f. OR 5
floors or less and 25,000 – 15,000 s.f. = System 5 (packaged VAV with reheat)<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>My building is 2-stories and just barely over 25,000 s.f.
(maybe 25,800 s.f. tops). I would much prefer to model the baseline as
System 3 as this would more closely resemble the proposed building and provide
a more realistic means of comparison. Under Table G3.1.1A, it states that
“where attributes make a building eligible for more than one baseline system
type, use the predominant condition to determine the system type for the entire
building.” How is the predominant condition determined? Can I claim
that the height of the building (2 stories) is more important than the square
footage? Or will the USGBC/GBCI require that I use System 5 as the
baseline because I’m even one square foot over the 25,000 threshold? <o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Any input from others in a similar predicament would be most
appreciated.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Thank you,<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><i>Cara Martin, </i><span style='font-size:10.0pt'>LEED AP
BD+C</span><i><o:p></o:p></i></p>
<p class=MsoNormal><b>Novus Engineering, P.C.<o:p></o:p></b></p>
<p class=MsoNormal><b><span style='font-size:10.0pt'>25 Delaware Ave.<o:p></o:p></span></b></p>
<p class=MsoNormal><b><span style='font-size:10.0pt'>Delmar, New York 12054<o:p></o:p></span></b></p>
<p class=MsoNormal><span style='font-size:10.0pt'>518.439-8235<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt'>518.439-8592 (fax)<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt'>CMartin@novusengineering.com<o:p></o:p></span></p>
<p class=MsoNormal><o:p> </o:p></p>
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