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<p class="MsoNormal">Alternately, I use the EE4 modeling program from NRCan. EE4 is a simplified GUI to DOE2.1e. It includes an envelope performance calculator that accounts for different types of thermal bridges. It has many built in materials and you can
add custom materials. I use EE4 to establish the envelope performances then I define my eQuest materials and layers to match.<o:p></o:p></p>
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<p class="MsoNormal">You would have to install EE4 using a virtual machine with XP. It won’t run on 64 bit Windows machines.<o:p></o:p></p>
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<p class="MsoNormal"><a href="https://www.nrcan.gc.ca/energy/software-tools/7453">https://www.nrcan.gc.ca/energy/software-tools/7453</a><o:p></o:p></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif">Christopher R Jones, P.Eng.<o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Arial",sans-serif">T+ 1 416-644-0252<o:p></o:p></span></p>
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<p class="MsoNormal"><b>From:</b> Equest-users [mailto:equest-users-bounces@lists.onebuilding.org]
<b>On Behalf Of </b>Jones, Christopher via Equest-users<br>
<b>Sent:</b> Wednesday, August 08, 2018 10:47 AM<br>
<b>To:</b> Paul Diglio <paul.diglio@sbcglobal.net>; equest-users@onebuilding.org<br>
<b>Subject:</b> Re: [Equest-users] Thermal Bridging of Steel Stud Walls<o:p></o:p></p>
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<p class="MsoNormal">Paul,<o:p></o:p></p>
<p class="MsoNormal">Chapter 27.5 in the ASHRAE Fundamentals provides examples for calculating the effective R-value for where there is steel studs creating a thermal bridge.<o:p></o:p></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif">Christopher R Jones, P.Eng.<o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Arial",sans-serif">T+ 1 416-644-0252<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b>From:</b> Equest-users [mailto:equest-users-bounces@lists.onebuilding.org]
<b>On Behalf Of </b>Paul Diglio via Equest-users<br>
<b>Sent:</b> Wednesday, August 08, 2018 10:11 AM<br>
<b>To:</b> equest-users@onebuilding.org<br>
<b>Subject:</b> [Equest-users] Thermal Bridging of Steel Stud Walls<o:p></o:p></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:12.0pt;font-family:"Helvetica",sans-serif;color:black">Hi:<o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:12.0pt;font-family:"Helvetica",sans-serif;color:black">Does anyone know how to calculate the thermal bridging of steel stud walls? I have a wall with 6" metal studs, 16" OC, with R39 cavity
insulation and R10 CI. Table A3.3.3.1 in 90.1-2013 does not go above R21.<o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:12.0pt;font-family:"Helvetica",sans-serif;color:black">Thank you,<o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:12.0pt;font-family:"Helvetica",sans-serif;color:black"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt;background:white"><span style="font-size:12.0pt;font-family:"Helvetica",sans-serif;color:black">Paul Diglio<o:p></o:p></span></p>
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