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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple style='word-wrap: break-word;-webkit-nbsp-mode: space;-webkit-line-break: after-white-space'><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Felipe,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo2'><![if !supportLists]><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><span style='mso-list:Ignore'>1.<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>ASHRAE 62.1-2004 Table 6.4 (Minimum Exhaust Rates) has a category for “parking garage,” not “parking spaces” apply the area of the whole enclosed parking lot, including drive aisle (but excluding enclosed spaces of other use types, such as mech rooms, stairwells, etc.)<br><br><o:p></o:p></span></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo2'><![if !supportLists]><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><span style='mso-list:Ignore'>2.<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>IEQc2 is all about increasing the “breathing zone outdoor air ventilation rates,” which corresponds to the outdoor air requirements of the VRP calculation and Table 6-1. Parking garages are not part of this calculation, so you are not required to increase the exhaust rate by 30%. In fact you may have noticed that section 6.2.8 doesn’t even require that the air you exhaust from the garage be made up with fresh air, you can use any combination of outdoor, recirculated and transfer air. <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><p class=MsoNormal style='margin-top:1.0pt'><b><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#632423'>Nathan Miller, PE, LEED<sup>®</sup>AP<o:p></o:p></span></b></p><p class=MsoNormal><i><span style='font-size:8.0pt;font-family:"Verdana","sans-serif";color:black'>Senior Energy Engineer/Mechanical Engineer<o:p></o:p></span></i></p><p class=MsoNormal><i><span style='font-size:8.0pt;font-family:"Verdana","sans-serif";color:black'><o:p> </o:p></span></i></p><p class=MsoNormal style='line-height:115%'><b><span style='font-size:8.0pt;line-height:115%;font-family:"Verdana","sans-serif";color:#632423'>D</span></b><span style='font-size:8.0pt;line-height:115%;font-family:"Verdana","sans-serif";color:#BFAB7F'> </span><span style='font-size:8.0pt;line-height:115%;font-family:"Verdana","sans-serif";color:black'>206-788-4577</span><span style='font-size:8.0pt;line-height:115%;font-family:"Verdana","sans-serif";color:#BFAB7F'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><a href="http://www.rushingco.com/"><b><i><span style='font-size:8.0pt;font-family:"Verdana","sans-serif";color:#632423'>www.rushingco.com</span></i></b></a><o:p></o:p></span></p></div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";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>Felipe Duran<br><b>Sent:</b> Friday, November 11, 2011 7:16 AM<br><b>To:</b> bldg-sim@lists.onebuilding.org<br><b>Subject:</b> [Bldg-sim] Underground Parking Garages Exhaust Rates<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Dear All,<o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>According to 62.1-2004 we have to consider an exhaust rate of 0,75 cfm/ft2 (or 3,7 l/s m2) for parking garages.<o:p></o:p></p></div><div><p class=MsoNormal>To do the calculations I have a couple of questions:<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>1. Do we have to include the streets within the parking lot on the area calculation or only the parking area (where the cars actually park)?<o:p></o:p></p></div><div><p class=MsoNormal>2. In projects seeking LEED NCv3 IEQc2 "Increased ventilation". Do we have to consider a 30% increase on the parking exhaust rate or that only apply for ventilation rates?<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Kind Regards, <o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal><span class=apple-style-span><span style='font-size:6.0pt;font-family:"Arial","sans-serif";color:black'>Felipe Durán Palma</span></span><span style='font-size:6.0pt;font-family:"Arial","sans-serif";color:black'><br><span class=apple-style-span>Director de Proyectos</span><br><span class=apple-style-span>Arquitecto PUC, Mphil U. Cambridge</span><br><span class=apple-style-span>LEED® AP BD+C</span><br><br></span><span style='font-size:7.0pt;font-family:"Arial","sans-serif";color:black'><img border=0 width=177 height=84 id="_x0035_818f416-0ad9-44ec-91e8-9cbcf44ba685" src="cid:image001.png@01CCA050.C1C47F90"></span><o:p></o:p></p></div><p class=MsoNormal><o:p> </o:p></p></div></div></body></html>