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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>I am not the authority, Keith, but I
believe that your interpretation (that existing buildings do not get rotated in
the baseline) is consistent with the intent of Appendix G. In new
construction, the decisions regarding building orientation will affect
performance and that performance should be measured against the baseline
(although, there are cases, such as a building that adjoins buildings to either
side, where rotating the baseline through all four orientations does not make
sense). If you’re improving an existing building, the existing
conditions of building enclosure components, including orientation, are an
appropriate baseline. When we apply Appendix G to existing buildings, we
have also found that “existing building envelopes” sometimes needs
to be parsed into existing building envelope components. For example, in
a mill rehab, the bearing walls may be serviceable and appropriately modeled “as
is” in the baseline, but missing windows or windows that are clearly not
serviceable we model as per the ASHRAE minimum compliance.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>You should note, also, that an addendum to
the standard has removed the provision in the table under G3.1, 5c to
distribute windows uniformly in horizontal bands across the four orientations. That
should make all of our lives easier.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=DE
style='font-size:10.0pt;font-family:Arial;color:navy'>Regards,<o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-margin-top-alt:6.0pt;margin-right:0in;margin-bottom:
3.0pt;margin-left:0in;mso-margin-top-alt:.5gd;mso-para-margin-right:0in;
mso-para-margin-bottom:.25gd;mso-para-margin-left:0in'><font size=2 color=navy
face=Arial><span lang=DE style='font-size:10.0pt;font-family:Arial;color:navy'>Ken
Neuhauser, M.Arch, MSc.Arch, LEED AP<o:p></o:p></span></font></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>Architectural
Project Manager<o:p></o:p></span></font></i></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Conservation Services Group, Inc.<o:p></o:p></span></font></p>
<p class=MsoNormal><u1:Street u2:st="on"><u1:address u2:st="on"><st1:Street
w:st="on"><st1:address w:st="on"><font size=1 color=navy face=Arial><span
style='font-size:9.0pt;font-family:Arial;color:navy'>40 Washington Street</span></font></st1:address></st1:Street><font
size=1 color=navy face=Arial><span style='font-size:9.0pt;font-family:Arial;
color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal></u1:address></u1:Street><u1:place u2:st="on"><u1:City u2:st="on"><st1:place
w:st="on"><st1:City w:st="on"><font size=1 color=navy face=Arial><span
style='font-size:9.0pt;font-family:Arial;color:navy'>Westborough</u1:City></span></font></st1:City><font
size=1 color=navy face=Arial><span style='font-size:9.0pt;font-family:Arial;
color:navy'>, <u1:State u2:st="on"><st1:State w:st="on">MA</u1:State></st1:State>
<u1:PostalCode u2:st="on"><st1:PostalCode w:st="on">01581</u1:PostalCode></st1:PostalCode></span></font></st1:place><font
size=1 color=navy face=Arial><span style='font-size:9.0pt;font-family:Arial;
color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 color=navy face=Arial><span style='font-size:
9.0pt;font-family:Arial;color:navy'></st1:place>Ph. 508 836-9500 ext. 13226<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 color=navy face=Arial><span style='font-size:
9.0pt;font-family:Arial;color:navy'>Fax 508 836-3181<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 color=navy face=Arial><span style='font-size:
9.0pt;font-family:Arial;color:navy'><a href="http://www.csgrp.com/">www.csgrp.com</a> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
BLDG-SIM@gard.com [mailto:BLDG-SIM@gard.com] <b><span style='font-weight:bold'>On
Behalf Of </span></b><st1:Street w:st="on"><st1:address w:st="on">Keith Lane</st1:address></st1:Street><br>
<b><span style='font-weight:bold'>Sent:</span></b> Tuesday, November 27, 2007
2:40 PM<br>
<b><span style='font-weight:bold'>To:</span></b> BLDG-SIM@gard.com<br>
<b><span style='font-weight:bold'>Subject:</span></b> [BLDG-SIM] <st1:place
w:st="on"><st1:PlaceName w:st="on">LEED</st1:PlaceName> <st1:PlaceType w:st="on">Building</st1:PlaceType></st1:place>
Orientation</span></font><o:p></o:p></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I am modeling an existing building for Energy &
Atmosphere Credit 1: Optimize Energy Performance. In LEED and table G3.1 No.
5(a) of ASHREA Standard 90.1-2004, it states that “the baseline building
performance shall be generated by simulating the building with its actual
orientation and again after rotating the entire building 90, 180, 270 degrees,
then averaging the results”. However table G3.1 No. 5(f) of ASHREA
Standard 90.1-2004 states: “for existing building envelopes, the baseline
building design shall reflect existing conditions prior to any revisions that
are part of the scope of work being evaluated.” Would this mean that you
do not need to simulate the building for the four orientations? It just
doesn’t seem to make sense to simulate the building in such a manner if
it is existing. I am new energy modeling for LEED credit and sincerely
appreciate any assistance.</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Thank you,</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font><o:p></o:p></p>
<p class=MsoAutoSig><st1:Street w:st="on"><st1:address w:st="on"><em><b><i><font
size=2 color=black face="Times New Roman"><span style='font-size:11.0pt;
color:black;font-weight:bold'>Keith Lane</span></font></i></b></em></st1:address></st1:Street><em><b><i><font
size=2 color=black face="Times New Roman"><span style='font-size:11.0pt;
color:black;font-weight:bold'>, LEED AP</span></font></i></b></em><o:p></o:p></p>
<p class=MsoAutoSig><em><b><i><font size=2 color=black face="Times New Roman"><span
style='font-size:11.0pt;color:black;font-weight:bold'>Mechanical Engineer</span></font></i></b></em><o:p></o:p></p>
<p class=MsoAutoSig><font size=4 color=red face="Arial Rounded MT Bold"><span
style='font-size:14.0pt;font-family:"Arial Rounded MT Bold";color:red'>Garcia.Galuska.DeSousa</span></font><o:p></o:p></p>
<p class=MsoAutoSig><i><font size=2 color=black face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:black;font-style:italic'>Consulting
Engineers
Inc.
</span></font></i><o:p></o:p></p>
<p class=MsoAutoSig><st1:address w:st="on"><st1:Street w:st="on"><font size=2
color=black face="Arial Narrow"><span style='font-size:10.0pt;font-family:
"Arial Narrow";color:black'>370 Faunce Corner Road</span></font></st1:Street><font
size=2 color=black face="Arial Narrow"><span style='font-size:10.0pt;
font-family:"Arial Narrow";color:black'>, <st1:City w:st="on">Dartmouth</st1:City>,
<st1:State w:st="on">MA</st1:State> <st1:PostalCode w:st="on">02747</st1:PostalCode></span></font></st1:address><font
size=2 color=black face="Arial Narrow"><span style='font-size:10.0pt;
font-family:"Arial Narrow";color:black'> </span></font><o:p></o:p></p>
<p class=MsoAutoSig><font size=2 color=black face="Arial Narrow"><span
style='font-size:10.0pt;font-family:"Arial Narrow";color:black'>p.508.998.5700
f. 508.998.0883</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<pre><font size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>==================<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>You received this e-mail because you are subscribed <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>to the BLDG-SIM@GARD.COM mailing list. To unsubscribe <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>from this mailing list send a blank message to <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>BLDG-SIM-UNSUBSCRIBE@GARD.COM<o:p></o:p></span></font></pre></div>
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