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<DIV dir=ltr align=left><FONT face=Calibri color=#0000ff><SPAN
class=656281914-30112007>The new addendum r to ASHRAE 90.1 states the
following:</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT><SPAN class=656281914-30112007><B><FONT size=1>
<P align=left><FONT face=Calibri color=#0000ff size=3>a. Orientation.
</FONT></B></FONT><FONT face=Calibri><FONT color=#0000ff><FONT lang=JA>The
</FONT><I>baseline building performance </I></FONT></FONT><FONT lang=JA><FONT
face=Calibri><FONT color=#0000ff>shall be<SPAN class=656281914-30112007>
</SPAN>generated by simulating the building with its actual orientation<SPAN
class=656281914-30112007> </SPAN>and again after rotating the entire building
90, 180, and 270<SPAN class=656281914-30112007> </SPAN>degrees, then averaging
the results. The building shall be<SPAN class=656281914-30112007>
</SPAN></FONT></FONT><FONT face=Calibri color=#0000ff>modeled so that it does
not shade itself.</FONT></P></FONT><B>
<P align=left><FONT face=Calibri color=#0000ff>Exceptions</FONT></P>
<P align=left><FONT face=Calibri color=#0000ff>(a) </FONT></B><FONT
lang=JA><FONT face=Calibri><FONT color=#0000ff>If it can be demonstrated to the
satisfaction of<SPAN class=656281914-30112007> </SPAN></FONT></FONT><FONT
face=Calibri color=#0000ff>the </FONT></FONT><FONT face=Calibri><FONT
color=#0000ff><I>Program Evaluator </I><FONT lang=JA>that the building
orientation<SPAN class=656281914-30112007> </SPAN>is dictated by site
considerations.<SPAN class=656281914-30112007>
</SPAN></P></FONT></FONT></FONT><B>
<P align=left><FONT face=Calibri color=#0000ff>(b) </FONT></B><FONT
lang=JA><FONT face=Calibri><FONT color=#0000ff>Buildings where the vertical
fenestration area on<SPAN class=656281914-30112007> </SPAN></FONT></FONT><FONT
face=Calibri color=#0000ff>each orientation varies by less than 5%.</FONT></P>
<P><STRONG><FONT face=Calibri color=#0000ff size=2></FONT></STRONG><STRONG><FONT
face=Calibri color=#0000ff size=2></FONT></STRONG> </P>
<P><FONT face=Calibri><FONT color=#0000ff>T<SPAN class=656281914-30112007>he
USGBC has stated that using the addendums to 90.1 is acceptable when
documenting EAp2 and EAc1. But be careful, as you'll need to incorporate
the other changes specified by the addendum too.
</SPAN></FONT></FONT></FONT></SPAN></FONT></P></DIV>
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<P class=MsoNormal align=left><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><FONT size=3><STRONG><FONT
face=Calibri color=#0000ff>Amanda E. <?xml:namespace prefix = st1 ns =
"urn:schemas-microsoft-com:office:smarttags" /><st1:place w:st="on"><st1:City
w:st="on">Bogner</st1:City>, <st1:State w:st="on">PE</st1:State></st1:place>
LEED AP</FONT></STRONG></FONT></SPAN></P>
<P class=MsoNormal align=left><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><FONT face=Calibri color=#0000ff
size=3><STRONG><o:p><SPAN class=656281914-30112007>BVM Engineering,
Inc.</SPAN></o:p></STRONG></FONT></SPAN></P>
<P><FONT color=#0000ff></FONT></P>
<P class=MsoNormal><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><FONT
face=Calibri color=#0000ff>404.806.2018 EXT 103 </FONT></SPAN></P>
<P class=MsoNormal><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><FONT
face=Calibri color=#0000ff>404.806.2019 (fax)</FONT></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p></o:p></SPAN><FONT face=Calibri
color=#0000ff> </FONT></P>
<P class=MsoNormal><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p><FONT
face=Calibri color=#0000ff> </FONT></o:p></SPAN></P>
<P class=MsoNormal><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p><FONT
face=Calibri
color=#0000ff> </FONT></o:p></SPAN></P></DIV></STRONG></FONT></DIV>
<DIV> </DIV><BR>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
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<FONT face=Tahoma size=2><B>From:</B> BLDG-SIM@gard.com
[mailto:BLDG-SIM@gard.com] <B>On Behalf Of </B>Brandon Nichols<BR><B>Sent:</B>
Thursday, November 29, 2007 7:48 PM<BR><B>To:</B>
BLDG-SIM@gard.com<BR><B>Subject:</B> [BLDG-SIM] LEED Building
Orientation<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV dir=ltr align=left><FONT size=+0><FONT size=+0><FONT
face="Courier New"><FONT color=#0000ff><FONT size=2>All<SPAN
class=426385000-30112007>,</SPAN></FONT></FONT></FONT></FONT></FONT></DIV>
<DIV dir=ltr align=left><FONT size=+0><FONT size=+0><FONT
face="Courier New"><FONT color=#0000ff><FONT size=2><SPAN
class=426385000-30112007></SPAN></FONT></FONT></FONT></FONT></FONT> </DIV>
<DIV dir=ltr align=left><FONT size=+0><FONT size=+0><FONT
face="Courier New"><FONT color=#0000ff><FONT size=2>Th<SPAN
class=426385000-30112007>e</SPAN> building rotation requirement is utterly
nonsensical<SPAN class=426385000-30112007>. For a full-text rant on the
subject, see my previous post:</SPAN></FONT></FONT></FONT></FONT></FONT></DIV>
<DIV dir=ltr align=left><FONT face="Courier New"><FONT color=#0000ff><FONT
size=2><SPAN class=426385000-30112007></SPAN></FONT></FONT></FONT> </DIV>
<DIV dir=ltr align=left><FONT face="Courier New"><FONT color=#0000ff><FONT
size=2><SPAN class=426385000-30112007><A
href="http://www.gard.com/ml/bldg-sim-archive/msg04038.html">http://www.gard.com/ml/bldg-sim-archive/msg04038.html</A> </SPAN></FONT></FONT></FONT></DIV>
<DIV dir=ltr align=left><FONT face="Courier New"><FONT color=#0000ff><FONT
size=2><SPAN class=426385000-30112007></SPAN></FONT></FONT></FONT> </DIV>
<DIV dir=ltr align=left><FONT face="Courier New"><FONT color=#0000ff><FONT
size=2><SPAN
class=426385000-30112007>In summary:</SPAN></FONT></FONT></FONT></DIV>
<DIV dir=ltr align=left><FONT face="Courier New"><FONT color=#0000ff><FONT
size=2><SPAN class=426385000-30112007></SPAN></FONT></FONT></FONT> </DIV>
<DIV dir=ltr align=left><FONT face="Courier New"><FONT color=#0000ff><FONT
size=2><SPAN class=426385000-30112007><SPAN class=426385000-30112007>1) In the
case of many new buildings (90% or more I would estimate), there is
very little latitude for changing the orientation. For example the main
street and therefore the lobby and entryway may be on one side and one side
only of the building, the aspect ratio of the building may not fit on the
lot in two of the four orientations,
etc.</SPAN></SPAN></FONT></FONT></FONT></DIV>
<DIV dir=ltr align=left><FONT face="Courier New"><FONT color=#0000ff><FONT
size=2><SPAN class=426385000-30112007><SPAN
class=426385000-30112007></SPAN></SPAN></FONT></FONT></FONT> </DIV>
<DIV dir=ltr align=left><FONT face="Courier New"><FONT color=#0000ff><FONT
size=2><SPAN class=426385000-30112007>2) <SPAN class=426385000-30112007>The
fictitious, etheral 'averaged' building does not exist even in the computer code
of the best analysis programs we have at our disposal to date.
</SPAN></SPAN></FONT></FONT></FONT></DIV>
<DIV dir=ltr align=left><FONT face="Courier New"><FONT color=#0000ff><FONT
size=2><SPAN class=426385000-30112007><SPAN
class=426385000-30112007></FONT></FONT></FONT></SPAN></SPAN><FONT
face="Courier New"><FONT color=#0000ff><FONT size=2><SPAN
class=426385000-30112007><SPAN class=426385000-30112007><FONT
face="Courier New"><FONT color=#0000ff><FONT size=2><SPAN
class=426385000-30112007></SPAN></FONT></FONT></FONT> </DIV>
<DIV dir=ltr align=left>
<DIV dir=ltr align=left><FONT face="Courier New"><FONT color=#0000ff><FONT
size=2><SPAN class=426385000-30112007>3) All baseline numbers for each of the
four orientations would need to be extracted from the analysis software, and
averaged on a spreadsheet</SPAN><SPAN class=426385000-30112007>. Similarly
each and every EEM would need to be extracted, and the project's comparative
analysis done on a spreadsheet instead of the within the analysis software
itself. Thanks, but I have a life, wife and
family.</SPAN></FONT></FONT></FONT></DIV>
<DIV dir=ltr align=left><FONT face="Courier New"><FONT color=#0000ff><FONT
size=2><SPAN
class=426385000-30112007></SPAN></FONT></FONT></FONT> </DIV></SPAN></SPAN></FONT></FONT></FONT></DIV>
<DIV dir=ltr align=left><FONT face="Courier New"><FONT color=#0000ff><FONT
size=2><SPAN class=426385000-30112007>4) If this requirement still sounds like
a good idea from the comfort of your tenured office, I say come on out
and run couple of dozen real-life energy code and LEED compliance
simulations for me within budget and on deadline in Q1-Q2 2008 and you'll
begin to understand what I'm talking
about.</SPAN></FONT></FONT></FONT></DIV>
<DIV dir=ltr align=left><FONT face="Courier New"><FONT color=#0000ff><FONT
size=2><SPAN class=426385000-30112007></SPAN></FONT></FONT></FONT> </DIV>
<DIV dir=ltr align=left><FONT face="Courier New"><FONT color=#0000ff><FONT
size=2><SPAN class=426385000-30112007>Why not
simply </SPAN></FONT></FONT></FONT><FONT face="Courier New"><FONT
color=#0000ff><FONT size=2><SPAN class=426385000-30112007>allow selecting the
orientation closest to, without performing worse than, the 'average' as the
baseline? This simple change would allow the baseline numbers to reside
within the analysis software.</SPAN></FONT></FONT></FONT></DIV>
<DIV dir=ltr align=left><FONT face="Courier New"><FONT color=#0000ff><FONT
size=2><SPAN class=426385000-30112007></SPAN></FONT></FONT></FONT><FONT
face="Courier New"><FONT color=#0000ff><FONT size=2><SPAN
class=426385000-30112007><FONT face="Courier New"><FONT color=#0000ff><FONT
size=2><SPAN class=426385000-30112007></SPAN></FONT></FONT></FONT> </DIV>
<DIV dir=ltr align=left>
<DIV dir=ltr align=left><FONT face="Courier New"><FONT color=#0000ff><FONT
size=2><SPAN class=426385000-30112007>Alternatively the eQuest developers are
rumored to be working on a 90.1 Appendix G compliance module. Upon
release, if it automates the averaging I may be inclined retire some portion of
this diatribe. </SPAN></FONT></FONT></FONT></DIV>
<DIV dir=ltr align=left><FONT face="Courier New"><FONT color=#0000ff><FONT
size=2><SPAN class=426385000-30112007></SPAN></FONT></FONT></FONT> </DIV>
<DIV dir=ltr align=left><FONT face="Courier New"><FONT color=#0000ff><FONT
size=2><SPAN class=426385000-30112007>Best idea yet, drop this as a requirement,
and make it optional where it makes sense to do so. Utilize by default the far
more intuitive (and useful in terms of energy incentives) 'code minimum'
baseline building, oriented identically to the proposed. This is the
approach I've been able to convince our state energy code and utility rebate
reviewers to accept -- its just hardened LEED extremists who still seem to have
their head in the sand on this.
</SPAN></FONT></FONT></FONT></DIV></SPAN></FONT></FONT></FONT></DIV>
<DIV><FONT face="Courier New" color=#0000ff size=2></FONT> </DIV>
<DIV><FONT face="Courier New" color=#0000ff size=2></FONT> </DIV>
<DIV><FONT face="Courier New" color=#0000ff size=2>Regards</FONT></DIV>
<DIV><FONT face="Courier New" color=#0000ff size=2></FONT> </DIV>
<DIV align=left>
<DIV align=left><FONT face=Arial size=2></FONT> </DIV><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 12.0pt">
<DIV><SPAN
style="FONT-SIZE: 10pt; COLOR: gray; FONT-FAMILY: Arial; mso-bidi-font-size: 12.0pt"><SPAN
class=212011020-11052004><FONT color=#000000>Brandon Nichols,
PE, LEED<SUP><SPAN style="FONT-SIZE: 8pt">®</SPAN></SUP>
AP</FONT></SPAN></SPAN></DIV>
<DIV><SPAN
style="FONT-SIZE: 10pt; COLOR: gray; FONT-FAMILY: Arial; mso-bidi-font-size: 12.0pt"><SPAN
class=212011020-11052004><FONT
color=#000000>Mechanical</FONT></SPAN></SPAN></DIV>
<DIV><SPAN
style="FONT-SIZE: 10pt; COLOR: gray; FONT-FAMILY: Arial; mso-bidi-font-size: 12.0pt"><FONT
color=#000080><STRONG>HARGIS ENGINEERS</STRONG></FONT></DIV>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><SPAN
style="FONT-SIZE: 10pt; COLOR: gray; FONT-FAMILY: Arial; mso-bidi-font-size: 12.0pt"><FONT
color=#515151>600 Stewart Street</FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><SPAN
style="FONT-SIZE: 10pt; COLOR: gray; FONT-FAMILY: Arial; mso-bidi-font-size: 12.0pt"><FONT
color=#515151>Suite 1000</FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><SPAN
style="FONT-SIZE: 10pt; COLOR: gray; FONT-FAMILY: Arial; mso-bidi-font-size: 12.0pt"><FONT
color=#515151>Seattle, WA 98101<o:p></o:p></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><SPAN
style="FONT-SIZE: 10pt; COLOR: gray; FONT-FAMILY: Arial; mso-bidi-font-size: 12.0pt"><FONT
color=#515151>www.hargis.biz<o:p></o:p></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><SPAN
style="FONT-SIZE: 10pt; COLOR: gray; FONT-FAMILY: Arial; mso-bidi-font-size: 12.0pt"><FONT
color=#515151> <o:p></o:p></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><B><SPAN
style="FONT-SIZE: 10pt; COLOR: gray; FONT-FAMILY: Arial; mso-bidi-font-size: 12.0pt">d
|</SPAN></B><SPAN
style="FONT-SIZE: 10pt; COLOR: gray; FONT-FAMILY: Arial; mso-bidi-font-size: 12.0pt">
206.436.04<SPAN class=212011020-11052004>0</SPAN>0<SPAN
style="mso-spacerun: yes"> </SPAN><B>c | </B>206.<SPAN
class=212011020-11052004>228.8707</SPAN></SPAN></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><SPAN
style="FONT-SIZE: 10pt; COLOR: gray; FONT-FAMILY: Arial; mso-bidi-font-size: 12.0pt"><SPAN
class=212011020-11052004></SPAN></SPAN><FONT color=#515151><B><SPAN
style="FONT-SIZE: 10pt; COLOR: gray; FONT-FAMILY: Arial; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA">o
|</SPAN></B><SPAN
style="FONT-SIZE: 10pt; COLOR: gray; FONT-FAMILY: Arial; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA">
206.448.3376<SPAN style="mso-spacerun: yes"> </SPAN><B>f <SPAN
style="mso-spacerun: yes"> </SPAN>|</B>
206.448.4450</SPAN></FONT></P></SPAN></SPAN>
<DIV> </DIV></DIV>
<DIV> </DIV><BR>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> BLDG-SIM@gard.com
[mailto:BLDG-SIM@gard.com] <B>On Behalf Of
</B>Edward.A.Decker@jci.com<BR><B>Sent:</B> Thursday, November 29, 2007 3:59
PM<BR><B>To:</B> BLDG-SIM@gard.com<BR><B>Cc:</B>
BLDG-SIM@gard.com<BR><B>Subject:</B> [BLDG-SIM] LEED Building
Orientation<BR></FONT><BR></DIV>
<DIV></DIV><BR><FONT face=sans-serif size=2>Can you not apply various
fenestrations and shading to the model without having to change its orientation?
For an existing building, including LEED EB, what additional benefit could be
gained by rotating the model since you cannot change the orientation?</FONT>
<BR><FONT face=sans-serif
size=2>_____________________________________________<BR>Edward A.
Decker<BR></FONT><BR><BR><BR>
<TABLE width="100%">
<TBODY>
<TR vAlign=top>
<TD width="40%"><FONT face=sans-serif size=1><B>"Leonard Sciarra"
<leonard_sciarra@gensler.com></B> </FONT><BR><FONT face=sans-serif
size=1>Sent by: BLDG-SIM@gard.com</FONT>
<P><FONT face=sans-serif size=1>11/29/2007 06:18 PM</FONT>
<TABLE border=1>
<TBODY>
<TR vAlign=top>
<TD bgColor=white>
<DIV align=center><FONT face=sans-serif size=1>Please respond
to<BR>leonard_sciarra@gensler.com</FONT></DIV></TD></TR></TBODY></TABLE><BR></P>
<TD width="59%">
<TABLE width="100%">
<TBODY>
<TR vAlign=top>
<TD>
<DIV align=right><FONT face=sans-serif size=1>To</FONT></DIV>
<TD><FONT face=sans-serif size=1><BLDG-SIM@gard.com></FONT>
<TR vAlign=top>
<TD>
<DIV align=right><FONT face=sans-serif size=1>cc</FONT></DIV>
<TD>
<TR vAlign=top>
<TD>
<DIV align=right><FONT face=sans-serif size=1>Subject</FONT></DIV>
<TD><FONT face=sans-serif size=1>[BLDG-SIM] LEED Building
Orientation</FONT></TD></TR></TBODY></TABLE><BR>
<TABLE>
<TBODY>
<TR vAlign=top>
<TD>
<TD></TD></TR></TBODY></TABLE><BR></TD></TR></TBODY></TABLE><BR><BR><BR><FONT
face=Arial color=blue size=2>This is true, however, even with an existing
building, you as the designer/engineer have the option of "working" the facades
and applying appropriate fenestration, shading, etc... you can still make
good/bad decisions and the fact that your footprint is fixed should not give the
design team a waiver from the fact that the sun still rises in the east and sets
in the west. In fact it may be a benefit if perhaps your building is
shaded on the west by itself.</FONT> <BR><FONT size=3> </FONT> <BR><FONT
face=Arial size=2>Leonard Sciarra, AIA, LEED ap</FONT> <BR><FONT face=Arial
size=2>312.577.6580 (Dir)</FONT> <BR><FONT face=Arial size=2>G E N S L E R |
Architecture & Design Worldwide</FONT> <BR><FONT face=Arial size=2>30 West
Monroe Street</FONT> <BR><FONT face=Arial size=2>Chicago IL, 60603</FONT>
<BR><FONT face=Arial size=2>312.456.0123</FONT> <BR><FONT face=Arial
size=2>leonard_sciarra@gensler.com </FONT>
<P><FONT size=3></FONT><BR><BR>
<HR>
<FONT face=Tahoma size=2><B>From:</B> BLDG-SIM@gard.com
[mailto:BLDG-SIM@gard.com] <B>On Behalf Of </B>Ross-Bain, Jeff<B><BR>Sent:</B>
Thursday, November 29, 2007 2:40 PM<B><BR>To:</B>
BLDG-SIM@gard.com<B><BR>Cc:</B> keith_lane@g-g-d.com<B><BR>Subject:</B>
[BLDG-SIM] LEED Building Orientation</FONT><FONT size=3><BR></FONT><BR><FONT
face=Arial color=blue size=2>Here is my question to and response from the USGBC
regarding this issue:</FONT> <BR><FONT face=Arial color=blue
size=2> </FONT> <BR><FONT face="Times New Roman" size=3> </FONT>
<BR><FONT face=Arial color=blue size=2>Dear LEED Info,</FONT> <BR><FONT
face=Arial color=blue size=2> </FONT> <BR><FONT face=Arial color=blue
size=2>There has been a lot of chat on this item and I wonder if there is a
USGBC position – I found no reference to this in the CIR’s:</FONT> <BR><FONT
face=Arial color=blue size=2> </FONT> <BR><FONT face=Arial color=blue
size=2>Do existing buildings undergoing renovation require the four-point
compass orientation analysis?</FONT> <BR><FONT face=Arial color=blue
size=2> </FONT> <BR><FONT face=Arial color=blue size=2> </FONT>
<BR><FONT face=Arial color=blue size=2> </FONT> <BR><FONT face=Calibri
size=2>Jeffrey,</FONT> <BR><FONT face=Calibri size=2> </FONT> <BR><FONT
face=Calibri size=2>If the existing building being renovated is pursuing LEED-NC
rather than LEED-EB, then it would indeed be required to undergo the specified
analysis. This analysis is used to establish the baseline for energy
performance using the ASHRAE standard. LEED doesn’t have any specific
exemptions for existing buildings in this requirement, but if ASHRAE has some
kind of exemption, we will honor that.</FONT> <BR><FONT face=Calibri
size=2> </FONT> <BR><FONT face=Calibri size=2> </FONT> <BR><FONT
face=Arial color=blue size=2>So I guess the question then becomes an
interpretation of the Appendix G (Table G3.1 (f)) comment for existing
buildings. Rotate or not?</FONT> <BR><FONT face=Arial color=blue
size=2> </FONT> <BR><FONT face=Arial color=blue size=2>My take has always
been that new buildings have the option to consider orientation but existing
buildings cannot be re-oriented so rotating the model does not really prove
anything. </FONT><BR><FONT face=Arial color=blue size=2> </FONT> <BR><FONT
face=Arial color=blue size=2>Any 90.1 code committee members or others out there
have an interpretation?</FONT> <BR><FONT face=Arial color=blue
size=2> </FONT> <BR><FONT face=Arial color=blue size=2>Regards,</FONT>
<P><FONT face=Arial color=#000080 size=2><B><I>Jeffrey G. Ross-Bain, PE,
LEED</I></B></FONT><FONT face="Times New Roman" color=blue size=3> </FONT><FONT
face=Arial color=blue size=1><BR>Smith Dalia Architects</FONT><FONT
face="Times New Roman" color=blue size=3> </FONT><FONT face=Arial color=blue
size=1><BR>621 North Ave NE</FONT><FONT face="Times New Roman" color=blue
size=3> </FONT><FONT face=Arial color=blue size=1><BR>Suite C-140</FONT><FONT
face="Times New Roman" color=blue size=3> </FONT><FONT face=Arial color=blue
size=1><BR>Atlanta, GA, 30308</FONT><FONT face="Times New Roman" color=blue
size=3> </FONT><FONT face=Arial color=blue size=1><BR>404-892-2443</FONT><FONT
face="Times New Roman" color=blue size=3> <U><BR></U></FONT><A
href="http://www.smithdalia.com/"><FONT face=Tahoma color=blue
size=1><U>www.smithdalia.com</U></FONT></A><FONT face="Times New Roman"
color=blue size=3> </FONT>
<P><FONT face=Webdings color=#008000 size=5>P</FONT><FONT face="Times New Roman"
color=#000080 size=2> </FONT><FONT face=Arial color=#008000 size=2><B>Consider
the environment.</B></FONT><FONT face="Times New Roman" color=blue size=2>
</FONT><FONT face=Arial color=#008000 size=2><B>Please don't print this e-mail
unless you really need to.</B></FONT>
<DIV align=center><BR>
<HR>
</DIV><BR><FONT face=Tahoma size=2><B>From:</B> BLDG-SIM@gard.com
[mailto:BLDG-SIM@gard.com] <B>On Behalf Of </B>Neuhauser, Ken<B><BR>Sent:</B>
Thursday, November 29, 2007 2:31 PM<B><BR>To:</B>
BLDG-SIM@gard.com<B><BR>Cc:</B> keith_lane@g-g-d.com<B><BR>Subject:</B>
[BLDG-SIM] LEED Building Orientation</FONT> <BR><FONT face="Times New Roman"
size=3> </FONT> <BR><FONT face=Arial color=#000080 size=2>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.</FONT> <BR><FONT face=Arial color=#000080 size=2> </FONT>
<BR><FONT face=Arial color=#000080 size=2>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.</FONT> <BR><FONT
face=Arial color=#000080 size=2> </FONT> <BR><FONT face=Arial color=#000080
size=2>Regards,</FONT> <BR><FONT face=Arial color=#000080 size=2>Ken Neuhauser,
M.Arch, MSc.Arch, LEED AP</FONT> <BR><FONT face=Arial color=#000080
size=2><I>Architectural Project Manager</I></FONT> <BR><FONT face=Arial
color=#000080 size=2>Conservation Services Group, Inc.</FONT> <BR><FONT
face=Arial color=#000080 size=1>40 Washington Street</FONT> <BR><FONT face=Arial
color=#000080 size=1>Westborough, MA 01581</FONT> <BR><FONT face=Arial
color=#000080 size=1>Ph. 508 836-9500 ext. 13226</FONT> <BR><FONT face=Arial
color=#000080 size=1>Fax 508 836-3181</FONT> <BR><A
href="http://www.csgrp.com/"><FONT face=Arial color=blue
size=1><U>www.csgrp.com</U></FONT></A><FONT face=Arial color=#000080 size=1>
</FONT><BR><FONT face="Times New Roman" size=3> </FONT> <BR><FONT
face=Arial color=#000080 size=2> </FONT> <BR><FONT face=Arial color=#000080
size=2> </FONT>
<DIV align=center><BR>
<HR>
</DIV><BR><FONT face=Tahoma size=2><B>From:</B> BLDG-SIM@gard.com
[mailto:BLDG-SIM@gard.com] <B>On Behalf Of </B>Keith Lane<B><BR>Sent:</B>
Tuesday, November 27, 2007 2:40 PM<B><BR>To:</B>
BLDG-SIM@gard.com<B><BR>Subject:</B> [BLDG-SIM] LEED Building Orientation</FONT>
<BR><FONT face="Times New Roman" size=3> </FONT> <BR><FONT face=Arial
size=2>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.</FONT> <BR><FONT face=Arial size=2> </FONT> <BR><FONT
face=Arial size=2>Thank you,</FONT> <BR><FONT face=Arial size=2> </FONT>
<BR><FONT face="Times New Roman" size=2><B><I>Keith Lane, LEED AP</I></B></FONT>
<BR><FONT face="Times New Roman" size=2><B><I>Mechanical Engineer</I></B></FONT>
<BR><FONT face="Arial Rounded MT Bold" color=red
size=4>Garcia.Galuska.DeSousa</FONT> <BR><FONT face=Arial size=2><I>Consulting
Engineers
Inc.
</I></FONT> <BR><FONT face="Arial Narrow" size=2>370 Faunce Corner
Road, Dartmouth, MA 02747 </FONT><BR><FONT face="Arial Narrow"
size=2>p.508.998.5700
f. 508.998.0883</FONT> <BR><FONT
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