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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Hi Charles,<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'>If all materials in your layers use the simplified resistance
entry format, there is no mass associated with the wall. When using the
layer methodology, you must use the "properties" format for the
majority of your materials. The properties format includes specific heat
and density input values. The layer constructions require specific heat
and densities in order to take thermal mass into account in the load and energy
balance calculations. If you do not want the thermal mass taken into
account, you can use a simplified construction and specify a user defined
U-value. Keep in mind that Appendix G requires thermal mass calculations
to be done for both the Proposed and Baseline buildings. Simplified
constructions should only be used during very early schematic design runs for
quick snapshots.<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'>Regards,<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><span style='font-size:10.0pt;color:#76923C'>Sheila Sagerer<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:#76923C'>Energy
Engineer, EIT, LEED AP<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:#76923C'>Energy
Opportunities, Inc, a 7group company<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:#76923C'>Phone:
717-880-9069<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:#76923C'>www.sevengroup.com<o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><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"'>
equest-users-bounces@lists.onebuilding.org
[mailto:equest-users-bounces@lists.onebuilding.org] <b>On Behalf Of </b>Charles
Welch<br>
<b>Sent:</b> Friday, August 27, 2010 2:53 PM<br>
<b>To:</b> equest-users@lists.onebuilding.org<br>
<b>Subject:</b> [Equest-users] "Layer by Layer Construction" errors<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>When
I am creating a wall and choose "Layer-by-Layer Construction" as my
input and specify a resistance, my runs come up with the following error:</span><o:p></o:p></p>
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<p class=MsoNormal> <o:p></o:p></p>
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>WALL
has no heat capacuty. U_VALUE used</span><o:p></o:p></p>
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<p class=MsoNormal> <o:p></o:p></p>
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Any
ideas where I am going wrong here?</span><o:p></o:p></p>
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<p class=MsoNormal> <o:p></o:p></p>
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Thanks,</span><o:p></o:p></p>
</div>
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<p class=MsoNormal> <o:p></o:p></p>
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<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Charles
Welch</span><o:p></o:p></p>
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<p class=MsoNormal> <o:p></o:p></p>
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