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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-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Hi Bill,<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=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>I actually don’t have any skylights, only windows. I was asking about “Curb” because I saw it in the report and I thought it might be the edge-of-glass performance I was looking for (I was corrected by the list-serv).<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=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>I changed the Spacer-Type for the windows in my model and didn’t see any changes…<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=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Thanks,<br>Alex<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><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"'> Bishop, Bill [mailto:wbishop@pathfinder-ea.com] <br><b>Sent:</b> Wednesday, January 05, 2011 11:39 AM<br><b>To:</b> Alex Krickx<br><b>Cc:</b> equest-users@lists.onebuilding.org<br><b>Subject:</b> RE: [Equest-users] Window "Curb"<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'>Alex,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'>One idea - does the roof surface with the skylight belong to a plenum, or unconditioned space? Building coincident peak loads shown on LS-C do not include plenums or unconditioned spaces.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'>Regards,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'>Bill<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'><o:p> </o:p></span></p><div><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Franklin Gothic Medium Cond","sans-serif";color:black'>William Bishop, PE, BEMP, LEED<sup>®</sup> AP </span></b><b><span style='font-size:10.0pt;font-family:"Franklin Gothic Medium Cond","sans-serif";color:#006600'>|</span></b><b><span style='font-size:10.0pt;font-family:"Franklin Gothic Medium Cond","sans-serif";color:black'> </span></b><b><span style='font-size:10.0pt;font-family:"Franklin Gothic Medium Cond","sans-serif";color:black'>Pathfinder Engineers & Architects LLP</span></b><b><span style='font-size:10.0pt;font-family:"Franklin Gothic Medium Cond","sans-serif";color:black'><o:p></o:p></span></b></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:black'>Mechanical Engineer<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:5.0pt;font-family:"Arial","sans-serif";color:black'><o:p> </o:p></span></p><p class=MsoNormal><!--[if gte vml 1]><v:shapetype id="_x0000_t75" coordsize="21600,21600" o:spt="75" o:preferrelative="t" path="m@4@5l@4@11@9@11@9@5xe" filled="f" stroked="f">
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</v:shape><![endif]--><![if !vml]><span style='mso-ignore:vglayout;position:absolute;z-index:-1;margin-left:367px;margin-top:17px;width:60px;height:58px'><img width=60 height=58 src="cid:image003.jpg@01CBACCD.8091E7F0" v:shapes="_x0000_s1026"></span><![endif]><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:navy'>134 South Fitzhugh Street</span><span style='font-size:9.0pt;color:navy'> </span><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:navy'>Rochester, NY 14608</span><span style='font-size:9.0pt;color:navy'><br></span><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:navy'>T: (585) 325-6004 </span><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:black'>Ext. 114</span><span style='color:navy'> </span><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:navy'>F: (585) 325-6005</span><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:black'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:black'><a href="mailto:wbishop@pathfinder-ea.com">wbishop@pathfinder-ea.com</a> </span><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:black'><a href="http://www.pathfinder-ea.com/">www.pathfinder-ea.com</a><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:18.0pt;font-family:Webdings;color:green'>P</span><span style='color:green'> </span><span style='font-size:7.5pt;color:green'>Sustainability – the forest AND the trees.</span><span style='font-size:18.0pt;font-family:Webdings;color:green'> P </span><span style='color:green'><o:p></o:p></span></p></div><div><div class=MsoNormal align=center style='text-align:center'><hr size=2 width="100%" align=center></div><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"'> equest-users-bounces@lists.onebuilding.org [mailto:equest-users-bounces@lists.onebuilding.org] <b>On Behalf Of </b>Alex Krickx<br><b>Sent:</b> Wednesday, January 05, 2011 1:40 PM<br><b>To:</b> John Aulbach; Jeremy Goth<br><b>Cc:</b> equest-users@lists.onebuilding.org<br><b>Subject:</b> Re: [Equest-users] Window "Curb"</span><o:p></o:p></p></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Alright- I know have a follow up question:<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=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>I ran my model with 3 different spacer types – steel, aluminum and insulated. While I expected the differences to be small the result I got was 0 difference at all- No difference in the loads in Report LS-C, and no difference in the Average U-value reported in LV-D.<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=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>In some research I’ve done in the past using Therm and Window I’ve found that going from a steel spacer to an insulated spacer can change the U-value by as much as 0.30 to 0.38. I would say that’s a significant difference and would expect that any change of that magnitude would impact loads in eQUEST. Unfortunately I saw 0 change.<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=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Any suggestions?<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=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Thanks for all the responses so far – this topic is really interesting!<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=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Kind regards,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Alex Krickx<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=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#262F13'>Alex Krickx, LEED AP<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Calibri","sans-serif";color:gray'>Building Energy Specialist<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:8.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><img border=0 width=121 height=42 id="_x0000_i1026" src="cid:image004.jpg@01CBACCD.8091E7F0" alt="email_sig"></span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>1250 Elko Dr, Sunnyvale, CA 94089<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>(t) 408.541.8124<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Calibri","sans-serif";color:gray'><o:p> </o:p></span></p><p class=MsoNormal><b><i><span style='font-size:7.5pt;font-family:"Arial","sans-serif";color:#1F497D'>Warning:</span></i></b><i><span style='font-size:7.5pt;font-family:"Arial","sans-serif";color:#1F497D'> The information contained in this e-mail may be privileged attorney-client communications or attorney work product and/or proprietary and confidential. If the reader of this message is not the intended recipient then you have received it in error and any review, distribution or copying of this message is prohibited and you are to notify us immediately by reply e-mail and delete the original message immediately.</span></i><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><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=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><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><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"'> equest-users-bounces@lists.onebuilding.org [mailto:equest-users-bounces@lists.onebuilding.org] <b>On Behalf Of </b>Alex Krickx<br><b>Sent:</b> Wednesday, January 05, 2011 9:09 AM<br><b>To:</b> John Aulbach; Jeremy Goth<br><b>Cc:</b> equest-users@lists.onebuilding.org<br><b>Subject:</b> Re: [Equest-users] Window "Curb"<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Wow….<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=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>John – your question led me to the right answer (almost). Under Window Properties/Basic Specs I can edit the Spacer-Type. This edits the Edge-of-Glass conductance. Does anyone know what the corresponding values are for the different Spacer-Types? And is there any way to have a user-entered value?<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><h5>SPACER-TYPE<o:p></o:p></h5><p class=MsoBodyText>Takes a code-word that specifies the type of pane-to-pane spacer air in multi-pane windows. The type of SPACER affects the edge-of-glass conductance.<o:p></o:p></p><p class=codeword>ALUMINUM Aluminum spacer<o:p></o:p></p><p class=codeword>BUTYL/METAL Butyl/Metal spacer<o:p></o:p></p><p class=codeword>INSULATED Insulated spacer<o:p></o:p></p><p class=codeword>STEEL Steel spacer<o:p></o:p></p><p class=codeword>UE-EQ-UC Fictitious spacer that gives an edge-of-glass conductance equal to the center-of-glass conductance (i.e., conductance of glass is uniform over its area).<o:p></o:p></p><p class=codeword><o:p> </o:p></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>John – I think that in the wizard mode you can choose different frame materials. I’m not sure but I’m guessing that the frame selection will vary what the frame spacer type is. Thanks for the question!<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=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Kind regards,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Alex Krickx<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=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#262F13'>Alex Krickx, LEED AP<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Calibri","sans-serif";color:gray'>Building Energy Specialist<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:8.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><img border=0 width=121 height=42 id="Picture_x005f_x0020_1" src="cid:image004.jpg@01CBACCD.8091E7F0" alt="email_sig"></span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>1250 Elko Dr, Sunnyvale, CA 94089<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>(t) 408.541.8124<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Calibri","sans-serif";color:gray'><o:p> </o:p></span></p><p class=MsoNormal><b><i><span style='font-size:7.5pt;font-family:"Arial","sans-serif";color:#1F497D'>Warning:</span></i></b><i><span style='font-size:7.5pt;font-family:"Arial","sans-serif";color:#1F497D'> The information contained in this e-mail may be privileged attorney-client communications or attorney work product and/or proprietary and confidential. If the reader of this message is not the intended recipient then you have received it in error and any review, distribution or copying of this message is prohibited and you are to notify us immediately by reply e-mail and delete the original message immediately.</span></i><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><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=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><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=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"'> John Aulbach [mailto:jra_sac@yahoo.com] <br><b>Sent:</b> Wednesday, January 05, 2011 8:59 AM<br><b>To:</b> Alex Krickx; Jeremy Goth<br><b>Cc:</b> equest-users@lists.onebuilding.org<br><b>Subject:</b> Re: [Equest-users] Window "Curb"<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal>Hi Alex:<o:p></o:p></p></div><div><p class=MsoNormal> <o:p></o:p></p></div><div><p class=MsoNormal>Dumb Question.<o:p></o:p></p></div><div><p class=MsoNormal> <o:p></o:p></p></div><div><p class=MsoNormal>Doesn't the eQuest Windows library allow you to chose glazing with a certain type of fram (wodd, aluminum, thermal bridge, no thermal bridge)?<o:p></o:p></p></div><div><p class=MsoNormal> <o:p></o:p></p></div><div><p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'>John R. Aulbach, PE, CEM<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'>Senior Energy Engineer<o:p></o:p></span></p><div><div><div><div><div class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#17365D'><hr size=2 width="30%" noshade style='color:#17365D' align=left></span></div></div></div></div></div><p class=MsoNormal><b><span style='font-family:"Calibri","sans-serif";font-variant:small-caps;color:navy'>Partner</span></b><b><span style='font-family:"Calibri","sans-serif";font-variant:small-caps;color:green'> </span></b><b><span style='font-family:"Calibri","sans-serif";font-variant:small-caps;color:#006600'>Energy</span></b><b><span style='font-family:"Calibri","sans-serif";font-variant:small-caps;color:navy'><o:p></o:p></span></b></p><p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'>1990 E. Grand Avenue, El Segundo, CA 90245</span><br><span style='font-family:"Calibri","sans-serif";color:#1F497D'>W: 888-826-1216, X254| D: 310-765-7295 | F: 310-817-2745<o:p></o:p></span></p><p class=MsoNormal><a href="http://www.ptrenergy.com/"><span style='font-family:"Calibri","sans-serif"'>www.ptrenergy.com</span></a><span style='font-family:"Calibri","sans-serif";color:#1F497D'> </span><a href="mailto:%7C%20jaulbach@ptrenergy.com"><span style='font-family:"Calibri","sans-serif"'>| jaulbach@ptrenergy.com</span></a><span style='color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p><div><div class=MsoNormal align=center style='text-align:center'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><hr size=1 width="100%" align=center></span></div><p class=MsoNormal style='margin-bottom:12.0pt'><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"'> Alex Krickx <akrickx@seriousmaterials.com><br><b>To:</b> Jeremy Goth <jngoth@hotmail.com><br><b>Cc:</b> "equest-users@lists.onebuilding.org" <equest-users@lists.onebuilding.org><br><b>Sent:</b> Wed, January 5, 2011 8:43:44 AM<br><b>Subject:</b> Re: [Equest-users] Window "Curb"</span><o:p></o:p></p><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D'>Thanks Bruce and Jeremy,</span><o:p></o:p></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D'>Well, you’ve answered my question but I still have the same problem: how to account for edge-of-glass effects in eQUEST (the edge of glass U-value will be between the frame and COG values). Back to the drawing board I guess. Thanks for the responses.</span><o:p></o:p></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D'>Kind regards,</span><o:p></o:p></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D'>Alex Krickx</span><o:p></o:p></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D'> </span><o:p></o:p></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:"Arial","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'> Jeremy Goth [mailto:jngoth@hotmail.com] <br><b>Sent:</b> Wednesday, January 05, 2011 8:26 AM<br><b>To:</b> Alex Krickx<br><b>Cc:</b> equest-users@lists.onebuilding.org<br><b>Subject:</b> RE: [Equest-users] Window "Curb"</span><o:p></o:p></p></div></div><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Go to your building shell and navigate to the space/roof/skylight in the component tree. Select the skylight then go to the spreadsheet tab on the right and find 'Skylight Surface - Curb - Performance'.<br> <br>Jeremy<br> </span><o:p></o:p></p><div class=MsoNormal align=center style='text-align:center'><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><hr size=2 width="100%" align=center></span></div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Date: Tue, 4 Jan 2011 20:00:19 -0500<br>From: bruce5@bellnet.ca<br>To: akrickx@seriousmaterials.com<br>CC: equest-users@lists.onebuilding.org<br>Subject: Re: [Equest-users] Window "Curb"<br><br></span><span style='font-size:13.5pt;font-family:"Arial","sans-serif"'> A curb is used to lift the window up off the roof and allow the window to be flashed and made water tight. It can be as simple as a 2x6 or 2x8 wood box. A complicated one would be a fully insulated wall tunnel through a roof truss system. It should be modelled as an exterior wall. There should be no edge of glass effect as all the glass should be inside the opening. There will be an edge/corner effect where the window frame sits on the curb.<br>Bruce Easterbrook P.Eng.<br>Abode Engineering<br><br></span><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><br>On 04/01/2011 04:12 PM, Alex Krickx wrote: </span><o:p></o:p></p><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Hi everyone,</span><o:p></o:p></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'> </span><o:p></o:p></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Happy New Year! Well, to start off the new year, I have a question on what the “curb” is in the LV-H report. The placement of the information, and the fact that it has an area and U-value (much the way the window frame does) leads me to believe it may be to account for Edge-of-Glass effects (if you look at Window5 outputs it has COG U-values, frame U-values and edge-of-glass U-values).</span><o:p></o:p></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'> </span><o:p></o:p></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>I can’t see anywhere in the detailed edit mode to input curb information - I looked in both the “Glass Type Properties” and “Window Properties” Screens.</span><o:p></o:p></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'> </span><o:p></o:p></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>I found the following info in the DOE2 help file, but it looks like it only applies to skylights? It also wasn’t clear if it was in fact for edge of glass, and how to add this information (I’m guessing in the INP file?). Thanks for any help.</span><o:p></o:p></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'> </span><o:p></o:p></p><p class=MsoNormal><b><span style='font-size:10.0pt'>CURB -CONDUCT</span></b><a name="_Toc140138080"></a><o:p></o:p></p><p class=MsoNormal>Conductance of the skylight curb, excluding the outside air film but including the inside air film. <o:p></o:p></p><p class=MsoNormal>Notes:<o:p></o:p></p><p class=MsoNormal style='margin-left:.25in'>1. You can define curbs only for exterior windows and skylights, not for interior windows.<o:p></o:p></p><p class=MsoNormal style='margin-left:.25in'>2. If the CURB-HEIGHT is zero no curb calculations will be performed.<o:p></o:p></p><p class=MsoNormal style='margin-left:.25in'>3. The curb area is <b>not</b> subtracted from the associated exterior wall area.<o:p></o:p></p><p class=MsoNormal style='margin-left:.25in'>4. Each hour, the program adds the effect of a wind speed-dependent outside air film to the user specified CURB-CONDUCT.<o:p></o:p></p><p class=MsoNormal style='margin-left:.25in'>5. The various elements of a curb (top, bottom, side, dividers, etc.) may have different conductances. In this case, CURB-CONDUCT should be an area-weighted average of the different elements.<o:p></o:p></p><p class=MsoNormal style='margin-left:.25in'>6. The program finds the overall window conduction by adding curb, frame, edge-of-glass, and center-of-glass contributions. Thus, all three of these contributions are included in each of the following report quantities:<br> "Window Conduction" in summary reports LS-B, LS-C, LS-E, and LS-F;<br> "Window U-Value" and "Window Area" in verification report LV-D and LV-H;<br> WINDOW hourly report variable #1, "Window U-Value".<o:p></o:p></p><p class=MsoNormal style='margin-left:.25in'>7. A WINDOW multiplier also multiplies the curb area.<o:p></o:p></p><p class=MsoNormal style='margin-left:.25in'>8. Window fins and overhangs shade the curb as well as the glazing.<o:p></o:p></p><p class=MsoNormal style='margin-left:.25in'>9. Shading devices, like blinds and drapes, that you specify using the WINDOW keywords SHADING-SCHEDULE and CONDUCT-SCHEDULE, affect only the glazed part of the window. They do not affect the heat conduction through the curb.<o:p></o:p></p><p class=MsoNormal style='margin-left:.25in'>10. If the window has a setback, the curb is also set back by the same amount.<o:p></o:p></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'> </span><o:p></o:p></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Kind regards,</span><o:p></o:p></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Alex Krickx</span><o:p></o:p></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'> </span><o:p></o:p></p><p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:#262F13'>Alex Krickx, LEED AP</span><o:p></o:p></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:gray'>Building Energy Specialist</span><o:p></o:p></p><p class=MsoNormal><b><span style='font-size:8.0pt;font-family:"Arial","sans-serif";color:#1F497D'>Error! Filename not specified.</span></b><o:p></o:p></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Arial","sans-serif"'>1250 Elko Dr, Sunnyvale, CA 94089</span><o:p></o:p></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Arial","sans-serif"'>(t) 408.541.8124</span><o:p></o:p></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:gray'> </span><o:p></o:p></p><p class=MsoNormal><b><i><span style='font-size:7.5pt;font-family:"Arial","sans-serif"'>Warning:</span></i></b><i><span style='font-size:7.5pt;font-family:"Arial","sans-serif"'> The information contained in this e-mail may be privileged attorney-client communications or attorney work product and/or proprietary and confidential. 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