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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'>I guess your “issue” or question relates to the amount of savings so you’re surprised how little savings you get increasing your wall insulation thickness?<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'>Don’t be surprised since you mentioned is internal load dominated plus there are other factors like climate, orientation and wall area that play a role so without the building description I don’t see any issue with the results you’re showing.<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'>Best,n<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 style='line-height:10.0pt'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:gray'>Nikola Kravik, LEED AP </span><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D'><img width=28 height=33 id="_x0000_i1026" src="cid:image001.gif@01CCDB64.42A31BA0" alt="Description: cid:image001.gif@01CB9AE0.30118F00"></span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";color:gray'><br>Project Engineer<br><br><b>Willdan Energy Solutions<o:p></o:p></b></span></p><p class=MsoNormal style='line-height:10.0pt'><span style='font-size:8.0pt;font-family:"Arial","sans-serif";color:gray'>11875 Dublin Boulevard, Suite A-201<br>Dublin, California 94568<br>T. 925.556.2600 ext. 1228<o:p></o:p></span></p><p class=MsoNormal style='line-height:10.0pt'><span style='font-size:8.0pt;font-family:"Arial","sans-serif";color:gray'>C. 925.719.5883<br>F. 925.556.1444<o:p></o:p></span></p><p class=MsoNormal style='mso-line-height-alt:10.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><a href="mailto:nkravik@willdan.com"><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:blue'>nkravik@willdan.com</span></a><br><a href="http://www.willdan.com/energy"><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:blue'>www.willdan.com/energy</span></a></span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal style='line-height:10.0pt'><span style='font-size:8.0pt;font-family:"Arial","sans-serif";color:gray'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:gray'><img border=0 width=237 height=39 id="Picture_x0020_1" src="cid:image002.jpg@01CCDB64.42A31BA0" alt="WD_tagend_300rgb"></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:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><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>nic<br><b>Sent:</b> Wednesday, January 25, 2012 1:01 PM<br><b>To:</b> equest-users@lists.onebuilding.org<br><b>Subject:</b> [Equest-users] Exterior insulation vs Exterior with Cavity insulation<o:p></o:p></span></p></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal style='margin-bottom:12.0pt'>I am attempting to establish a few alternatives compared to an ASHRAE 90.1 Wall construction. This much seems pretty straightforward with the only change between alternatives being a different construction applied to the exterior above grade walls. All alternatives are modeled as delayed and with layered materials. The wall from outside to inside is stucco(finish) R0.08 + Cont. Insulation R-VARIES + Ext sheathing R0.56 + Framing/Insulation R-VARIES* + Int. Sheating R0.56 (air films do not change, infiltration does not change, etc.)<br><br>*framing 16" Mtl OC taken into account<br><br><<< I should mention the building is very much internal load dominant as an education building with a lot of laboratory space >>><o:p></o:p></p><div><p class=MsoNormal>The problem described below has been input into eQuest using material properties for all continuous insulation and a representative R-value for framing/insulation.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><p class=MsoNormal><br>BASELINE - 90.1 - R6* + 7.5 ci na<br><br>ALT1 - only ext insulation R0.9 + 12 ci -8% savings (% energy under EUI - kBtu/sf/yr) <br><br>ALT2 - improved ext insulation R6* + 12 ci +1% savings<br><br>ALT3 - improved cavity insulation R7.1* + 7.5 ci +1% savings<br><br>ALT4 - all insulation improved R7.1* + 12 ci +2% savings<o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>I guess the question really is; does the issue lie within the vav systems or the envelope or both?<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><p class=MsoNormal>As a novice, I greatly appreciate any help.<o:p></o:p></p></div></body></html>