Appendix G does specifically state that for existing buildings being gutted, the
Baseline building envelope should be modeled based on the existing
conditions prior to any revisions that are part of the scope of work
being evaluated (Table G3.1(5)(f)). Therefore, if you are modeling
self-shading and adjacent buildings in the proposed case for an
existing building, they should also be modeled in the base case for existing buildings.<br>
<br>Best Regards,<br>Gail Stranske<br>CTG Energetics, Inc.<br><br><div class="gmail_quote">On Wed, Jun 4, 2008 at 1:32 PM, Demba Ndiaye <<a href="mailto:demba.ndiaye@setty.com">demba.ndiaye@setty.com</a>> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
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<p><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; color: navy;">Eric, </span></font></p>
<p><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; color: navy;"> </span></font></p>
<p><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; color: navy;">My understanding is that, regardless of the
fact that the building is new or existing, there is no specific requirement
regarding the modeling of neighboring shading objects.</span></font></p>
<p><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; color: navy;"> </span></font></p>
<div>
<p><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; color: navy;">______________</span></font><font color="navy"><span style="color: navy;"></span></font></p>
<p><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; color: navy;">Demba
Ndiaye</span></font></p>
</div>
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<div>
<div style="text-align: center;" align="center"><font face="Times New Roman" size="3"><span style="font-size: 12pt;">
<hr align="center" size="2" width="100%">
</span></font></div>
<p><b><font face="Tahoma" size="2"><span style="font-size: 10pt; font-family: Tahoma; font-weight: bold;">From:</span></font></b><font face="Tahoma" size="2"><span style="font-size: 10pt; font-family: Tahoma;">
<a href="mailto:bldg-sim-bounces@lists.onebuilding.org" target="_blank">bldg-sim-bounces@lists.onebuilding.org</a>
[mailto:<a href="mailto:bldg-sim-bounces@lists.onebuilding.org" target="_blank">bldg-sim-bounces@lists.onebuilding.org</a>] <b><span style="font-weight: bold;">On Behalf Of </span></b>Eric Studer<br>
<b><span style="font-weight: bold;">Sent:</span></b> Wednesday, June 04, 2008
3:47 PM<br>
<b><span style="font-weight: bold;">To:</span></b> <a href="mailto:bldg-sim@lists.onebuilding.org" target="_blank">bldg-sim@lists.onebuilding.org</a><br>
<b><span style="font-weight: bold;">Subject:</span></b> [Bldg-sim] ASHRAE
90.1-App G: Site Shading</span></font></p>
</div><div><div></div><div class="Wj3C7c">
<p><font face="Times New Roman" size="3"><span style="font-size: 12pt;"> </span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;">Hello,</span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;"> </span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;">ASHRAE 90.1-2004 Appendix G has a clause pertaining to
self-shading of the baseline building, but there does not seem to be any
explicit direction regarding shading from other objects beyond the building
envelope (trees, buildings, etc). Should the base case be modeled as
being impacted by adjacent buildings or other objects? Would this be
different for a new building versus an existing building that is being gutted?</span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;"> </span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;">Thanks</span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;"> </span></font></p>
<p><u><font face="Times New Roman" size="2"><span style="font-size: 10pt;">
</span></font></u></p>
<p><font face="Times New Roman" size="3"><span style="font-size: 12pt;"> </span></font></p>
<p><font face="Times New Roman" size="2"><span style="font-size: 10pt;">Eric Studer, PE, LEED AP<br>
DMI<br>
35 Walnut Street<br>
Wellesley, MA 02481<br>
Ph: (781) 431-1100 ext 12<br>
Fax: (781) 431-1109<br>
e-mail: <a href="mailto:estuder@dmiinc.com" target="_blank">estuder@dmiinc.com</a></span></font></p>
<p><font face="Times New Roman" size="3"><span style="font-size: 12pt;"> </span></font></p>
</div></div></div>
</div>
</div>
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