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    <p>Toni,</p>
    <p>  If you haven't already done so, you need to activate the first
      floor and draw lines on its roof/ceiling that correspond to the
      footprint of the second floor. The same holds true for walls and
      floors, SketchUp/Trnsys3D is looking at the vertices of all your
      surfaces and if two surfaces have precisely the same vertices then
      they will be recognized as matching.</p>
    <p>kind regards,</p>
    <p> David</p>
    <p><br>
    </p>
    <div class="moz-cite-prefix">On 01/04/2021 08:24, Toni Calabrese via
      TRNSYS-users wrote:<br>
    </div>
    <blockquote type="cite"
cite="mid:VE1PR09MB321470C4871AF38D48734886E9D20@VE1PR09MB3214.eurprd09.prod.outlook.com">
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        <p class="MsoNormal"><span style="font-size:10.0pt">Hi,<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="font-size:10.0pt" lang="EN-US">I
            have a problem with the "match surfaces" function in
            SketchUp. I have a building in which the second floor is
            smaller compared to the first floor (see the image). When I
            "match the surfaces", it tells me that the floor of the
            second floor is an external roof and seems that it does not
            recognize that the floor of the second floor is connected
            with the ceiling of the first floor. If the two floors have
            the same surfaces, it works perfectly but in this special
            case it does not work. Someone can help me?<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="font-size:10.0pt" lang="EN-US">Thanks
            a lot for any help.<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="font-size:10.0pt" lang="EN-US"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span
            style="font-size:10.0pt;color:#1F497D" lang="EN-US"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span
            style="font-size:10.0pt;color:#1F497D;mso-fareast-language:DE-CH"><img
              style="width:4.025in;height:3.1666in" id="Picture_x0020_2"
              src="cid:part1.8091E946.33167C8E@tess-inc.com" class=""
              width="386" height="304"></span><span
            style="font-size:10.0pt;color:#1F497D" lang="EN-US"><o:p></o:p></span></p>
        <div class="MsoNormal" style="text-align:center" align="center"><span
style="font-size:10.0pt;color:#1F497D;mso-fareast-language:DE-CH">
            <hr width="100%" size="2" align="center">
          </span></div>
        <p class="MsoNormal" style="margin-top:4.0pt"><b><span
              style="font-size:10.0pt;color:#1F497D;mso-fareast-language:DE-CH">Toni
              Calabrese</span></b><span
            style="font-size:10.0pt;color:#1F497D;mso-fareast-language:DE-CH">,
            MSc.</span><span
            style="font-size:10.0pt;color:#1F497D;mso-fareast-language:DE-CH"><o:p></o:p></span></p>
        <p class="MsoNormal"><span
            style="font-size:10.0pt;color:#1F497D;mso-fareast-language:DE-CH">Wissenschaftlicher
            Projektmitarbeiter<o:p></o:p></span></p>
        <p class="MsoNormal"><span
            style="font-size:10.0pt;color:#1F497D;mso-fareast-language:DE-CH"><a
              href="mailto:toni.calabrese@spf.ch" moz-do-not-send="true"><span
                style="color:#0065A3">toni.calabrese@spf.ch</span></a> |</span><span
style="font-size:10.0pt;color:#8C195F;mso-fareast-language:DE-CH">
          </span><span
            style="font-size:10.0pt;color:#1F497D;mso-fareast-language:DE-CH"><a
              href="mailto:toni.calabrese@ost.ch" moz-do-not-send="true"><span
                style="color:#0065A3">toni.calabrese@ost.ch</span></a></span><span
style="font-size:10.0pt;color:#8C195F;mso-fareast-language:DE-CH"><o:p></o:p></span></p>
        <p class="MsoNormal"><span
style="font-family:"Calibri",sans-serif;color:#8C195F;mso-fareast-language:DE-CH"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span
            style="font-size:10.0pt;color:#1F497D;mso-fareast-language:DE-CH">T
            +41 58 257 4827<o:p></o:p></span></p>
        <p class="MsoNormal"><span
            style="font-size:10.0pt;color:#1F497D;mso-fareast-language:DE-CH"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span
            style="font-size:10.0pt;color:#1F497D;mso-fareast-language:DE-CH">SPF
            Institut für Solartechnik<o:p></o:p></span></p>
        <p class="MsoNormal"><span
            style="font-size:10.0pt;color:#1F497D;mso-fareast-language:DE-CH">OST
            – Ostschweizer Fachhochschule<o:p></o:p></span></p>
        <p class="MsoNormal"><span
            style="font-size:10.0pt;color:#1F497D;mso-fareast-language:DE-CH">Oberseestr.
            10 | CH-8640 Rapperswil | Switzerland |
          </span><u><span
              style="color:#8C195F;mso-fareast-language:DE-CH"><a
                href="http://www.spf.ch" moz-do-not-send="true"><span
                  style="font-size:10.0pt;color:#8C195F">www.spf.ch</span></a></span></u><span
style="font-size:10.0pt;color:#1F497D;mso-fareast-language:DE-CH"> |
          </span><u><span
              style="color:#8C195F;mso-fareast-language:DE-CH"><a
                href="http://www.ost.ch" moz-do-not-send="true"><span
                  style="font-size:10.0pt;color:#8C195F">www.ost.ch</span></a></span></u><span
style="font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:DE-CH"><o:p></o:p></span></p>
        <p class="MsoNormal"><span
            style="font-size:10.0pt;color:#1F497D;mso-fareast-language:DE-CH"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span style="font-size:9.0pt;color:#1F497D">OST
            – Ostschweizer Fachhochschule ist der Zusammenschluss aus
            FHS St.Gallen, HSR Rapperswil und NTB Buchs.<o:p></o:p></span></p>
        <p class="MsoNormal"><o:p> </o:p></p>
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      <pre class="moz-quote-pre" wrap="">_______________________________________________
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<a class="moz-txt-link-abbreviated" href="mailto:TRNSYS-users@lists.onebuilding.org">TRNSYS-users@lists.onebuilding.org</a>
<a class="moz-txt-link-freetext" href="http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org">http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org</a>
</pre>
    </blockquote>
    <pre class="moz-signature" cols="72">-- 
***************************
David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
3 North Pinckney Street - suite 202
Madison, WI  53703 USA

P:+1.608.274.2577
<a class="moz-txt-link-abbreviated" href="mailto:d.bradley@tess-inc.com">d.bradley@tess-inc.com</a>

<a class="moz-txt-link-freetext" href="http://www.tess-inc.com">http://www.tess-inc.com</a>
<a class="moz-txt-link-freetext" href="http://www.trnsys.com">http://www.trnsys.com</a></pre>
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