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<div class=Section1>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>We just used the PRM on a gut rehab job,
and I would interpret Table G3.1.5 (f) "Existing Buildings. 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" to over-ride paragraphs (a) - (e) above it, one of which
includes the rotation.<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'>So, one would not apply the rotation to
that type of evaluation.<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>
<div>
<p class=MsoNormal><font size=2 color=navy face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:navy'>--</span></font><font
color=navy><span style='color:navy'><o:p></o:p></span></font>
</p>
<p class=MsoNormal><font size=2 color=navy face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:navy'>Fred W. Porter,
B.S., LEED A.P.<br>
Architectural Energy Corp.<br>
<br>
</span></font><o:p></o:p>
</p>
</div>
<div>
<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>
<hr size=2 width="100%" align=center tabindex=-1>
</span></font></div>
<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'> Eric Yang
[mailto:Eric.Yang@smithgroup.com] <br>
<b><span style='font-weight:bold'>Sent:</span></b> Tuesday, April 17, 2007 3:53
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] App G 2004
question</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 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>To follow up this issue, I also have a
question here: <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'>For existing buildings (e,g, tenant
fit-out), is it necessary to rotate the baseline building since the building is
already built? <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'>Thanks.<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'>Eric <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'>Smithgroup. <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>
<div>
<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>
<hr size=2 width="100%" align=center tabindex=-1>
</span></font></div>
<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>Liu, Bing<br>
<b><span style='font-weight:bold'>Sent:</span></b> Tuesday, April 17, 2007 5:29
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] App G 2004
question</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=3 color=navy face="Times New Roman"><span
style='font-size:12.0pt;color:navy'>Charlie and Brandon,</span></font><o:p></o:p>
</p>
<p class=MsoNormal><font size=3 color=navy face="Times New Roman"><span
style='font-size:12.0pt;color:navy'>The motivation and justification for
rotating the baseline building in Appendix G can be found in the 90.1-2004
User's Manual (example G-C Fenestration). Here are two reasons why
rotate the baseline building:</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>
<p class=MsoNormal><font size=3 color=navy face="Times New Roman"><span
style='font-size:12.0pt;color:navy'>1. To give credit and reward if
the proposed building is designed to have the majority of windows
facing either south or north. </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>
<p class=MsoNormal><font size=3 color=navy face="Times New Roman"><span
style='font-size:12.0pt;color:navy'>2. If the building is configured
in such a way that it is capable of shading itself (e.g.
"L" or "U" shaped), this self shading is not modeled
in the baseline building. </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>
</div>
<div>
<p class=MsoNormal><font size=3 color=navy face="Times New Roman"><span
style='font-size:12.0pt;color:navy'>Thanks,</span></font><o:p></o:p>
</p>
</div>
<p><font size=3 color=green face="Comic Sans MS"><span style='font-size:12.0pt;
font-family:"Comic Sans MS";color:green'><!-- Converted from text/rtf format -->Bing</span></font>
<br>
<u><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>
</span></font></u><br>
<i><font color=teal><span style='color:teal;font-style:italic'>Bing Liu, PE,
CEM, LEED AP</span></font></i> <br>
<font size=2 color=teal><span style='font-size:10.0pt;color:teal'>Senior
Research Engineer</span></font> <br>
<font size=2 color=teal><span style='font-size:10.0pt;color:teal'>Pacific
Northwest National Laboratory</span></font> <br>
<font size=2 color=teal><span style='font-size:10.0pt;color:teal'>902 Battelle
Blvd, MSIN:K5-16</span></font> <br>
<st1:place w:st="on"><st1:City w:st="on"><font size=2 color=teal><span
style='font-size:10.0pt;color:teal'>Richland</span></font></st1:City><font
size=2 color=teal><span style='font-size:10.0pt;color:teal'>, <st1:State
w:st="on">WA</st1:State> <st1:PostalCode w:st="on">99352</st1:PostalCode></span></font></st1:place>
<br>
<font size=2 color=teal><span style='font-size:10.0pt;color:teal'>Tel:
(509) 375-3710</span></font> <br>
<font size=2 color=teal><span style='font-size:10.0pt;color:teal'>Fax: (509)
375-3614</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>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font>
</p>
<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>
<hr size=2 width="100%" align=center tabIndex=-1>
</span></font></div>
<p class=MsoNormal style='margin-bottom:12.0pt'><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>Charles Christenson<br>
<b><span style='font-weight:bold'>Sent:</span></b> Tuesday, April 17, 2007 1:47
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] App G 2004
question</span></font><o:p></o:p>
</p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'>As clarification, LEED
v2.2 requires the use of the Performance Rating Method from Appendix G, not the
ECB method (which was used in previous versions of LEED). In fact, in the
Reference Guide section of LEED v2.2 titled “Common mistakes made using
the Performance Rating Method”, the first mistake listed is “The
Energy Cost Budget Method (Section 11) is incorrectly used rather than the
Performance Rating Method (Appendix G) to obtain EA Credit 1 credit”. <o:p></o:p></span></font>
</p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p> </o:p></span></font>
</p>
<p class=MsoNormal><st1:place w:st="on"><st1:City w:st="on"><font size=2
color="#1f497d" face=Calibri><span style='font-size:11.0pt;font-family:Calibri;
color:#1F497D'>Brandon</span></font></st1:City></st1:place><font size=2
color="#1f497d" face=Calibri><span style='font-size:11.0pt;font-family:Calibri;
color:#1F497D'> – when I first read Appendix G, I was puzzled by their
motivation. Why rotate the building if you are already evenly
distributing glass? I am still not sure what the justification from
ASHRAE is on that one. I have not seen anything from USGBC that gives any
exceptions to the rotating requirement.<o:p></o:p></span></font>
</p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p> </o:p></span></font>
</p>
<p class=MsoNormal><font size=1 color="#1f497d" face=Calibri><span
style='font-size:8.0pt;font-family:Calibri;color:#1F497D'>Charlie Christenson,
LEED AP<o:p></o:p></span></font>
</p>
<p class=MsoNormal><font size=1 color="#1f497d" face=Calibri><span
style='font-size:8.0pt;font-family:Calibri;color:#1F497D'>Brummitt Energy
Associates, Inc.<o:p></o:p></span></font>
</p>
<p class=MsoNormal><st1:Street w:st="on"><st1:address w:st="on"><font size=1
color="#1f497d" face=Calibri><span style='font-size:8.0pt;font-family:Calibri;
color:#1F497D'>2171 India Street</span></font></st1:address></st1:Street><font
size=1 color="#1f497d" face=Calibri><span style='font-size:8.0pt;font-family:
Calibri;color:#1F497D'>, Suite B<o:p></o:p></span></font>
</p>
<p class=MsoNormal><st1:place w:st="on"><st1:City w:st="on"><font size=1
color="#1f497d" face=Calibri><span style='font-size:8.0pt;font-family:Calibri;
color:#1F497D'>San Diego</span></font></st1:City><font size=1 color="#1f497d"
face=Calibri><span style='font-size:8.0pt;font-family:Calibri;color:#1F497D'>,
<st1:State w:st="on">CA</st1:State> <st1:PostalCode w:st="on">92101</st1:PostalCode></span></font></st1:place><font
size=1 color="#1f497d" face=Calibri><span style='font-size:8.0pt;font-family:
Calibri;color:#1F497D'><o:p></o:p></span></font>
</p>
<p class=MsoNormal><font size=1 color="#1f497d" face=Calibri><span
style='font-size:8.0pt;font-family:Calibri;color:#1F497D'>tel: 619-531-1126<o:p></o:p></span></font>
</p>
<p class=MsoNormal><font size=1 color="#1f497d" face=Calibri><span
style='font-size:8.0pt;font-family:Calibri;color:#1F497D'>fax:
619-531-1101<o:p></o:p></span></font>
</p>
<p class=MsoNormal><font size=1 color="#1f497d" face=Calibri><span
style='font-size:8.0pt;font-family:Calibri;color:#1F497D'>cchristenson@brummitt.com<o:p></o:p></span></font>
</p>
<p class=MsoNormal><font size=1 color="#1f497d" face=Calibri><span
style='font-size:8.0pt;font-family:Calibri;color:#1F497D'>www.brummitt.com<o:p></o:p></span></font>
</p>
<p class=MsoNormal><font size=1 color="#1f497d" face=Calibri><span
style='font-size:8.0pt;font-family:Calibri;color:#1F497D'><o:p> </o:p></span></font>
</p>
<p class=MsoNormal><font size=1 color="#1f497d" face=Calibri><span
style='font-size:8.0pt;font-family:Calibri;color:#1F497D'>A net-zero carbon
company, using www.b-e-f.org/GreenTags<o:p></o:p></span></font>
</p>
<p class=MsoNormal><font size=1 color="#1f497d" face=Calibri><span
style='font-size:8.0pt;font-family:Calibri;color:#1F497D'><o:p> </o:p></span></font>
</p>
<p class=MsoNormal><font size=1 color="#1f497d" face=Calibri><span
style='font-size:8.0pt;font-family:Calibri;color:#1F497D'>Brummitt Energy Associates,
Inc. helps you achieve comfortable, highly energy efficient, cost-effective
projects by integrating the building design with daylighting, electric
lighting, and mechanical systems. Consulting from early design through
construction documentation, we specialize in energy and daylight modeling,
increasing financial incentives, and documentation for Title 24, LEED™
and CHPS. 20 years experience includes thousands of buildings, and more
than 35 projects pursuing and achieving LEED™ ratings, from Certified to
Platinum.</span></font><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p></o:p></span></font>
</p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<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>Leader, Philip<br>
<b><span style='font-weight:bold'>Sent:</span></b> Tuesday, April 17, 2007 1:02
PM<br>
<b><span style='font-weight:bold'>To:</span></b> BLDG-SIM@gard.com<br>
<b><span style='font-weight:bold'>Cc:</span></b> Shawn Gavras<br>
<b><span style='font-weight:bold'>Subject:</span></b> [BLDG-SIM] App G 2004
question<o:p></o:p></span></font>
</p>
</div>
</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=3 color=blue face="Comic Sans MS"><span
style='font-size:12.0pt;font-family:"Comic Sans MS";color:blue'>The Appendix G
is an informative appendix and is not part of Standard 90.1. It is merely
informative and does not contain requirements necessary for conformance to the
Standard.</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>
<p class=MsoNormal><font size=3 color=blue face="Comic Sans MS"><span
style='font-size:12.0pt;font-family:"Comic Sans MS";color:blue'>In the
Energy Cost Budget Method section in Table 11.3 under Section 5 Building
Envelope, it describes the requirements for the <st1:PlaceName w:st="on">Proposed</st1:PlaceName>
<st1:PlaceType w:st="on">Building</st1:PlaceType> design and the <st1:place
w:st="on"><st1:PlaceName w:st="on">Budget</st1:PlaceName> <st1:PlaceType w:st="on">Building</st1:PlaceType></st1:place>
design. The first paragraph under the <st1:place w:st="on"><st1:PlaceName
w:st="on">Budget</st1:PlaceName> <st1:PlaceType w:st="on">Building</st1:PlaceType></st1:place>
design states.... The <em><i><font face="Comic Sans MS"><span style='font-family:
"Comic Sans MS"'>budget building</span></font></i></em> shall have identical <em><i><font
face="Comic Sans MS"><span style='font-family:"Comic Sans MS"'>conditioned
floor</span></font></i></em> <em><i><font face="Comic Sans MS"><span
style='font-family:"Comic Sans MS"'>area</span></font></i></em> and identical
exterior dimensions and orientations as the proposed design, except as noted in
(a), (b), and (c) in this clause. </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>
<p class=MsoNormal><font size=3 color=blue face="Comic Sans MS"><span
style='font-size:12.0pt;font-family:"Comic Sans MS";color:blue'>There's nothing
in the Standard stating you must rotate the building in 90 degree increments
and average the results. We've never been asked to do it to my knowledge by the
USGBC during a LEED review of our projects.</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>
<p class=MsoNormal><font size=4 color=blue face="Comic Sans MS"><span
style='font-size:13.5pt;font-family:"Comic Sans MS";color:blue'>Philip S.
Leader, PE</span></font> <br>
<font size=2 color=blue face="Comic Sans MS"><span style='font-size:10.0pt;
font-family:"Comic Sans MS";color:blue'>Director of Mechanical Engineering</span></font><font
color=blue><span style='color:blue'> <br>
</span></font><font size=2 color=blue face="Comic Sans MS"><span
style='font-size:10.0pt;font-family:"Comic Sans MS";color:blue'>Albert Kahn
Associates, Inc.</span></font><font color=blue><span style='color:blue'> <br>
</span></font><font size=2 color=blue face="Comic Sans MS"><span
style='font-size:10.0pt;font-family:"Comic Sans MS";color:blue'>7430 <st1:Street
w:st="on"><st1:address w:st="on">Second Ave.</st1:address></st1:Street></span></font><font
color=blue><span style='color:blue'> <br>
</span></font><st1:place w:st="on"><st1:City w:st="on"><font size=2 color=blue
face="Comic Sans MS"><span style='font-size:10.0pt;font-family:"Comic Sans MS";
color:blue'>Detroit</span></font></st1:City><font size=2 color=blue
face="Comic Sans MS"><span style='font-size:10.0pt;font-family:"Comic Sans MS";
color:blue'>, <st1:State w:st="on">Michigan</st1:State> <st1:PostalCode w:st="on">48202-2798</st1:PostalCode></span></font></st1:place><font
color=blue><span style='color:blue'> <br>
</span></font><font size=2 color=blue face="Comic Sans MS"><span
style='font-size:10.0pt;font-family:"Comic Sans MS";color:blue'>Phone:
313-202-7834</span></font><font color=blue><span style='color:blue'> <br>
</span></font><font size=2 color=blue face="Comic Sans MS"><span
style='font-size:10.0pt;font-family:"Comic Sans MS";color:blue'>FAX:
3130202-7334</span></font><font color=blue><span style='color:blue'> <br>
</span></font><font size=2 color=blue face="Comic Sans MS"><span
style='font-size:10.0pt;font-family:"Comic Sans MS";color:blue'>Email:
philip.leader@akahn.com</span></font><font color=blue><span style='color:blue'>
<br>
</span></font><font size=2 color=blue face="Comic Sans MS"><span
style='font-size:10.0pt;font-family:"Comic Sans MS";color:blue'>Website: www.albertkahn.com</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>
<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>
<hr size=2 width="100%" align=center>
</span></font></div>
<p class=MsoNormal style='margin-bottom:12.0pt'><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>Brandon Nichols<br>
<b><span style='font-weight:bold'>Sent:</span></b> Tuesday, April 17, 2007 3:12
PM<br>
<b><span style='font-weight:bold'>To:</span></b> BLDG-SIM@gard.com<br>
<b><span style='font-weight:bold'>Cc:</span></b> Shawn Gavras<br>
<b><span style='font-weight:bold'>Subject:</span></b> [BLDG-SIM] App G 2004
question</span></font><o:p></o:p>
</p>
<div>
<p class=MsoNormal><font size=2 face="Lucida Console"><span style='font-size:
10.0pt;font-family:"Lucida Console"'>All,</span></font><o:p></o:p>
</p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font>
</p>
</div>
<div>
<p class=MsoNormal><font size=2 face="Lucida Console"><span style='font-size:
10.0pt;font-family:"Lucida Console"'>This is an old thread, but one I
thought worth revisiting to see if there have been any developments.
Specifically we are preparing a LEED Silver project for submittal, and while we
understand he intent of the Appendix G 'multiple-orientation' and
'fenestration-leveling' requirements, our evaluation is that they
impose extensive calculation requirements for arguably marginal returns on
accuracy.</span></font><o:p></o:p>
</p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font>
</p>
</div>
<div>
<p class=MsoNormal><font size=2 face="Lucida Console"><span style='font-size:
10.0pt;font-family:"Lucida Console"'>In the case of our specific building (as I
would suspect the case of 90%+ of all buildings) there's simply no latitude to
change the orientation. Similarly with glass distribution, the lobby and
entryway have the flexibility to be on one side and one side only of the
building, and thus distributing the glass equally amongst all facets for
the baseline model seems to add an unnecessary level of abstraction to the
comparative analyses.</span></font><o:p></o:p>
</p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font>
</p>
</div>
<div>
<p class=MsoNormal><font size=2 face="Lucida Console"><span style='font-size:
10.0pt;font-family:"Lucida Console"'>Does imposing the requirement for
analysts to spend considerable effort developing fictitious baselines
based on building orientations and glass distributions that have 0% chance of construction
seem to be a reasonable requisite for LEED project
certifications? What I mean by 'considerable effort' is:</span></font><o:p></o:p>
</p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font>
</p>
</div>
<div>
<p class=MsoNormal><font size=2 face="Lucida Console"><span style='font-size:
10.0pt;font-family:"Lucida Console"'>• That the all baseline numbers
for each of the four orientations would need to be extracted from the
analysis software, averaged on a spreadsheet, and a similar extraction
done for all subsequent energy efficiency measure (EEM) comparisons.
Posting these numbers from analysis software to spreadsheets would be both
time-consuming and introduce another level of potential error, and thus
require additional error-checking. </span></font><o:p></o:p>
</p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font>
</p>
</div>
<div>
<p class=MsoNormal><font size=2 face="Lucida Console"><span style='font-size:
10.0pt;font-family:"Lucida Console"'>• That a new building would
need to be developed, with glass redistributed equally amongst all facets, for
the four-point orientation exercise described above. Again, while
this may sound reasonable from a theoretical standpoint, practically speaking
this requirement serves to decouple the baseline from glazing-dependent
energy efficiency measures. How meaningful is changing the U-value
or shading coefficient of the glass in an EEM in comparison to a
fictitious baseline, when the glass distribution is crucial to determining
whether or not the measure is cost-effective? As with building
orientations, posting these numbers from analysis software to spreadsheets
would be both time-consuming and additionally error-prone. </span></font><o:p></o:p>
</p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font>
</p>
</div>
<div>
<p class=MsoNormal><font size=2 face="Lucida Console"><span style='font-size:
10.0pt;font-family:"Lucida Console"'>All to fulfill the requirement of deriving
a fictitious baseline for use in the comparative analyses -- no doubt these
requirements were incorporated with good intention, but practical
implementation considerations seem to have not been considered carefully
enough.</span></font><o:p></o:p>
</p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font>
</p>
</div>
<div>
<p class=MsoNormal><font size=2 face="Lucida Console"><span style='font-size:
10.0pt;font-family:"Lucida Console"'>Further, we find the concept of
comparing proposed energy efficiency measures to a "code
minimum" baseline building, oriented identically and glazed
similarly to each of the EEMs, to be intuitively more meaningful
to both the owner and project team (and thus presumably to the
LEED reviewer) than comparison to a fictitious baseline. This approach
allows the baseline to reside in the analysis software, and EEM comparisons
accomplished using the built-in 'parametric run' features of the analysis
software (eQuest and others) to reduce the time-consuming error-prone
tediousness of extracting and posting numbers to a spreadsheet for
comparative evaluation.</span></font><o:p></o:p>
</p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font>
</p>
</div>
<div>
<p class=MsoNormal><font size=2 face="Lucida Console"><span style='font-size:
10.0pt;font-family:"Lucida Console"'>Has anyone had success in obtaining LEED
project approval when excepting these 'building orientation averaging' and
'glazing-area leveling' requirements? What is required in terms of
the LEED application to waive these requirements?</span></font><o:p></o:p>
</p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font>
</p>
</div>
<div>
<p class=MsoNormal><font size=2 face="Lucida Console"><span style='font-size:
10.0pt;font-family:"Lucida Console"'>Also, does anyone know if these
requirements have been identified for relaxation or revision in the next
LEED update?</span></font><o:p></o:p>
</p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font>
</p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font>
</p>
</div>
<div>
<p class=MsoNormal><font size=2 face="Lucida Console"><span style='font-size:
10.0pt;font-family:"Lucida Console"'>Regards</span></font><o:p></o:p>
</p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font>
</p>
</div>
<div>
<p class=MsoNormal><font size=2 face="Lucida Console"><span style='font-size:
10.0pt;font-family:"Lucida Console"'>Brandon Nichols, PE<br>
Mechanical<br>
HARGIS ENGINEERS<br>
<st1:Street w:st="on"><st1:address w:st="on">600 Stewart St</st1:address></st1:Street><br>
<st1:address w:st="on"><st1:Street w:st="on">Suite</st1:Street> 1000</st1:address><br>
<st1:place w:st="on"><st1:City w:st="on">Seattle</st1:City>, <st1:State w:st="on">WA</st1:State>
<st1:PostalCode w:st="on">98101</st1:PostalCode></st1:place><br>
d | 206.436.0400 c | 206.228.8707<br>
o | 206.448.3376 f | 206.448.4450<br>
<a href="http://www.hargis.biz">www.hargis.biz</a></span></font><o:p></o:p>
</p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font>
</p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font>
</p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>_________________________________________________<o:p></o:p></span></font>
</p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>At 08:41 AM 1/24/2006, Bill Bahnfleth wrote:<o:p></o:p></span></font>
</p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font>
</p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Modeling the building in the specified orientations and averaging gives
an orientation-neutral baseline.<br>
<br>
Appendix G has been developed with substantial input from experts at PNNL and
after discussions with USGBC. Glad to hear that modelers are ignoring whatever
they don't understand or find inconvenient.<br>
<br>
Bill Bahnfleth<br>
Member, ECB Subcommittee<br>
<br>
At 09:42 PM 1/23/2006, Peter Alspach wrote:<o:p></o:p></span></font>
</p>
</div>
<blockquote style='border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in 12.0pt;
margin-left:0in;margin-top:5.0pt;margin-bottom:5.0pt'><pre><font size=2
face="Courier New"><span style='font-size:10.0pt'> A bit of a throw-back to the old 1989 version then?<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'>-----Original Message-----<o:p></o:p></span></font>
</pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>From: Kevin Warren [<a
href="mailto:kevin@warren-energy.com">mailto:kevin@warren-energy.com</a>]<o:p></o:p></span></font>
</pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>Sent: Monday, January 23, 2006 5:46 PM<o:p></o:p></span></font>
</pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>To: peter.alspach@arup.com; bldg-sim@gard.com<o:p></o:p></span></font>
</pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>Subject: RE: [bldg-sim] App G 2004 question<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'>Peter,<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'>I believe the intent is to give you a way to get some savings from<o:p></o:p></span></font>
</pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>orienting your building with an eye toward savings. If you pay attention<o:p></o:p></span></font>
</pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>to the sun in your design (passive solar and/or daylighting), you should<o:p></o:p></span></font>
</pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>get some savings relative to the average of the rotated orientations.<o:p></o:p></span></font>
</pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>Similarly, you could get a penalty if you have too much west-facing<o:p></o:p></span></font>
</pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>glass.<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'>I'm not sure how strictly this provision is being enforced. Most of the<o:p></o:p></span></font>
</pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>modelers I have spoken to ignore it, but that is a very unscientific<o:p></o:p></span></font>
</pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>sample.<o:p></o:p></span></font>
</pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>These modelers may not be submitting to USGBC.<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'>For a utility incentive program, it often does not make sense to do this<o:p></o:p></span></font>
</pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>rotation. Those incentive programs typically care about the savings from<o:p></o:p></span></font>
</pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>incremental changes to the design, particularly those changes that carry<o:p></o:p></span></font>
</pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>an incremental cost. I'm not sure how one would determine an incremental<o:p></o:p></span></font>
</pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>cost for your building's orientation, so it is not a factor that would<o:p></o:p></span></font>
</pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>typically be eligible.<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'>Kevin Warren, P.E., CEM, LEED AP<o:p></o:p></span></font>
</pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>Warren Energy Engineering, LLC<o:p></o:p></span></font>
</pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>(610) 255-3798 ph<o:p></o:p></span></font>
</pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>(610) 255-3406 f<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'>-----Original Message-----<o:p></o:p></span></font>
</pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>From: bldg-sim@gard.com [<a
href="mailto:bldg-sim@gard.com%5DOn">mailto:bldg-sim@gard.com]On</a> Behalf Of Peter<o:p></o:p></span></font>
</pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>Alspach<o:p></o:p></span></font>
</pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>Sent: Monday, January 23, 2006 8:04 PM<o:p></o:p></span></font>
</pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>To: bldg-sim@gard.com<o:p></o:p></span></font>
</pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>Subject: [bldg-sim] App G 2004 question<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'>Anyone out there know the source of why one would be required to<o:p></o:p></span></font>
</pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>simulate a building in an orientation that it is not in? This doesn't<o:p></o:p></span></font>
</pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>really make any sense to me - am I missing something?<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'>Peter<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'>-----Original Message-----<o:p></o:p></span></font>
</pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>From: bldg-sim@gard.com [<a
href="mailto:bldg-sim@gard.com">mailto:bldg-sim@gard.com</a>] On Behalf Of Rohini<o:p></o:p></span></font>
</pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>Brahme<o:p></o:p></span></font>
</pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>Sent: Monday, January 23, 2006 1:13 PM<o:p></o:p></span></font>
</pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>To: bldg-sim@gard.com<o:p></o:p></span></font>
</pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>Subject: [bldg-sim] App G 2004 question<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'>I have a question about the Appendix G in 90.1, 2004.<o:p></o:p></span></font>
</pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>In Table G3.1 the baseline building is to be simulated as follows:<o:p></o:p></span></font>
</pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>" Orientation. The baseline building performance shall be generated by<o:p></o:p></span></font>
</pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>simulating the building with its actual orientation and again after<o:p></o:p></span></font>
</pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>rotating the entire building 90, 180, 270 degrees, then averaging the<o:p></o:p></span></font>
</pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>results. The building shall be modeled so that it does not shade<o:p></o:p></span></font>
</pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>itself."<o:p></o:p></span></font>
</pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>What does --- the building shall be modeled so that it does not shade<o:p></o:p></span></font>
</pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>itself ---- mean?<o:p></o:p></span></font>
</pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>Does it mean that if there is, for example, an L shaped building (which<o:p></o:p></span></font>
</pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>self shades), it has to be modeled as square? rectangle?<o:p></o:p></span></font>
</pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>Any thoughts on this appreciated.<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'>Thanks<o:p></o:p></span></font>
</pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>- Rohini<o:p></o:p></span></font>
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