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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D"><a href="https://www.bchydro.com/powersmart/business/programs/new-construction.html#thermal">https://www.bchydro.com/powersmart/business/programs/new-construction.html#thermal</a><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""> Bldg-sim [mailto:bldg-sim-bounces@lists.onebuilding.org]
<b>On Behalf Of </b>Francesco Passerini<br>
<b>Sent:</b> Wednesday, December 02, 2015 12:21 PM<br>
<b>To:</b> bldg-sim@lists.onebuilding.org<br>
<b>Subject:</b> [Bldg-sim] Thermal Bridging for LEED compliant energy models<o:p></o:p></span></p>
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<p class="MsoNormal">Hello, where could I find a copy of the “MH Building Envelope Thermal Bridging Guide”, please?<br>
I have never received comments related to thermal bridges (I modeled 7 buildings that were certified LEED).<br>
Generally I model only the thermal bridges that are relative to a material discontinuity (e.g. a pillar in the exterior wall).<br>
Consider that in some cases the value of the thermal bridge could be negative (generally if you consider the exterior dimensions of the envelope).<o:p></o:p></p>
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<p class="MsoNormal">With Regards<o:p></o:p></p>
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<p class="MsoNormal">Francesco Passerini<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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---------- Messaggio inoltrato ----------<br>
From: Volkan Ozdemir <<a href="mailto:ozdvolkan@gmail.com">ozdvolkan@gmail.com</a>><br>
To: <a href="mailto:bldg-sim@lists.onebuilding.org">bldg-sim@lists.onebuilding.org</a><br>
Cc: <br>
Date: Tue, 1 Dec 2015 23:49:45 +0300<br>
Subject: [Bldg-sim] Thermal Bridging for LEED compliant energy models<o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black">Hello,</span><span style="font-size:10.0pt;font-family:Helvetica;color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> </span><span style="font-size:10.0pt;font-family:Helvetica;color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:black">Could some of you more experienced folk help me understand thermal bridging modeling for LEED compliant energy simulation?</span><span lang="RU" style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:black"> </span><span lang="RU" style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:black">I use “MH Building Envelope Thermal Bridging Guide” for modeling thermal bridges in proposed design. However, there are couple of points I`m not sure about.
I use clear field values from Appendix A as Appendix A already accounts for thermal bridging present in clear field envelope assemblies.</span><span lang="RU" style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:black"> </span><span lang="RU" style="color:black"><o:p></o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black">1.</span><span style="font-size:7.0pt;color:black"> </span><span lang="RU" style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> </span><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black">Should
I include Floor Slab Linear transmittance values in my proposed model? Even if floor slab edge is fully insulated on exterior, there will be some thermal bridging effect due to shelf angle use. However, this seems unfair for the proposed design as baseline
design doesn`t take into account floor slab edge thermal bridging effect.</span><span lang="RU" style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black">2.</span><span style="font-size:7.0pt;color:black"> </span><span lang="RU" style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> </span><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black">Similarly,
baseline model doesn`t account for “Glazing Transition Linear Transmittance”, “Parapet Linear Transmittance”, and “Corner Linear Transmittance”. Do I have to model these 3 thermal bridging effects on my proposed model, it seems rather unfair compared to baseline
model?</span><span lang="RU" style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black">3.</span><span style="font-size:7.0pt;color:black"> </span><span lang="RU" style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> </span><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black">Did
you ever receive any comments from LEED reviewers about thermal bridging, could you share your correspondence?</span><span lang="RU" style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:black"> </span><span lang="RU" style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:black">Already now thanks for help,</span><span lang="RU" style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:Helvetica;color:black">--</span><span style="font-size:10.0pt;color:black"> </span><span style="font-size:10.0pt;font-family:Helvetica;color:black"><br>
Volkan Ozdemir<o:p></o:p></span></p>
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