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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'>Possibly the interpretation of what is
gross wall area depends on what version of 90.1 you are looking at. As
for 90.1-2004, the official interpretation on the ASHRAE web site leaves no
doubt that “gross wall area” include both above- and below-ground
walls. See the following item verbatim from the ASHRAE web site.</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal style='margin-right:113.4pt;margin-bottom:0in;margin-left:
118.3pt;margin-bottom:.0001pt;text-indent:18.05pt;line-height:12.5pt;
text-autospace:none'><b><font size=3 face="Times New Roman"><span
style='font-size:12.0pt;font-weight:bold'>INTERPRETATION IC 90.1-2004-1 OF ANSI/ASHRAE/IESNA
STANDARD 90.1-2004</span></font></b></p>
<p class=MsoNormal style='margin-right:-1.0pt;margin-bottom:0in;margin-left:
59.75pt;margin-bottom:.0001pt;line-height:12.0pt;text-autospace:none'><b><font
size=3 face="Times New Roman"><span style='font-size:12.0pt;font-weight:bold'>Energy
Standard for Buildings Except Low-Rise Residential Buildings</span></font></b></p>
<p class=MsoNormal style='line-height:6.0pt;text-autospace:none'><font size=1
face="Times New Roman"><span style='font-size:6.0pt'> </span></font></p>
<p class=MsoNormal style='line-height:10.0pt;text-autospace:none'><font size=2
face="Times New Roman"><span style='font-size:10.0pt'> </span></font></p>
<p class=MsoNormal align=center style='margin-right:159.55pt;margin-bottom:
0in;margin-left:164.5pt;margin-bottom:.0001pt;text-align:center;line-height:
12.0pt;text-autospace:none'><b><font size=3 face="Times New Roman"><span
style='font-size:12.0pt;font-weight:bold'>Date Approved </span></font></b><b><span style='font-weight:bold'>June 25, 2005</span></b></p>
<p class=MsoNormal style='line-height:14.0pt;text-autospace:none'><font size=4
face="Times New Roman"><span style='font-size:14.0pt'> </span></font></p>
<p class=MsoNormal style='margin-right:4.85pt;margin-bottom:0in;margin-left:
6.0pt;margin-bottom:.0001pt;line-height:14.0pt;text-autospace:none'><b><u><font
size=3 face="Times New Roman"><span style='font-size:12.0pt;font-weight:bold'>Request
from</span></font></u>:</b> Roger Chang (E-mail: <u><font color=blue><span
style='color:blue'>roger.chang@arup.com</span></font></u><font color=black><span
style='color:black'>), Associate Member, 155 Avenue of the </span></font><font
color=black><span style='color:black'>Americas</span></font><font
color=black><span style='color:black'>, </span></font><font color=black><span
style='color:black'>New York</span></font><font color=black><span
style='color:black'>, </span></font><font color=black><span style='color:black'>NY</span></font><font
color=black><span style='color:black'> </span></font><font color=black><span
style='color:black'>10013</span></font><font color=black><span
style='color:black'>.</span></font></p>
<p class=MsoNormal style='line-height:14.1pt;text-autospace:none'><font size=4
color=black face="Times New Roman"><span style='font-size:14.0pt;color:black'> </span></font></p>
<p class=MsoNormal style='margin-right:16.2pt;margin-bottom:0in;margin-left:
6.0pt;margin-bottom:.0001pt;line-height:14.0pt;text-autospace:none'><b><u><font
size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;
color:black;font-weight:bold'>Reference</span></font></u><font color=black><span
style='color:black'>:</span></font></b><font color=black><span
style='color:black'> This request for interpretation refers to the
requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2004, Section 5.2.1
Compliance, relating to gross wall area.</span></font></p>
<p class=MsoNormal style='line-height:14.1pt;text-autospace:none'><font size=4
color=black face="Times New Roman"><span style='font-size:14.0pt;color:black'> </span></font></p>
<p class=MsoNormal style='margin-right:8.9pt;margin-bottom:0in;margin-left:
6.0pt;margin-bottom:.0001pt;line-height:14.0pt;text-autospace:none'><b><u><font
size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;
color:black;font-weight:bold'>Background</span></font></u><font color=black><span
style='color:black'>: </span></font></b><font color=black><span
style='color:black'>Standard 90.1-2004 does not appear to be clear as to what
gross wall area means. International Energy Conservation Code is clear that
prescriptive requirements are based on window to above-grade wall area. This
impacts all sections of the code where the window-to- wall area ratio is taken
into consideration.</span></font></p>
<p class=MsoNormal style='line-height:6.1pt;text-autospace:none'><font size=1
color=black face="Times New Roman"><span style='font-size:6.0pt;color:black'> </span></font></p>
<p class=MsoNormal style='line-height:10.0pt;text-autospace:none'><font size=2
color=black face="Times New Roman"><span style='font-size:10.0pt;color:black'> </span></font></p>
<p class=MsoNormal style='margin-right:-1.0pt;margin-bottom:0in;margin-left:
6.0pt;margin-bottom:.0001pt;line-height:12.0pt;text-autospace:none'><b><u><font
size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;
color:black;font-weight:bold'>Interpretation</span></font></u><font
color=black><span style='color:black'>: </span></font></b><font color=black><span
style='color:black'>Gross wall area refers to above-grade wall only.</span></font></p>
<p class=MsoNormal style='line-height:6.1pt;text-autospace:none'><font size=1
color=black face="Times New Roman"><span style='font-size:6.0pt;color:black'> </span></font></p>
<p class=MsoNormal style='line-height:10.0pt;text-autospace:none'><font size=2
color=black face="Times New Roman"><span style='font-size:10.0pt;color:black'> </span></font></p>
<p class=MsoNormal style='margin-right:-1.0pt;margin-bottom:0in;margin-left:
6.0pt;margin-bottom:.0001pt;line-height:12.0pt;text-autospace:none'><b><u><font
size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;
color:black;font-weight:bold'>Question</span></font></u><font color=black><span
style='color:black'>:</span></font></b><font color=black><span
style='color:black'> Is this interpretation correct?</span></font></p>
<p class=MsoNormal style='line-height:6.1pt;text-autospace:none'><font size=1
color=black face="Times New Roman"><span style='font-size:6.0pt;color:black'> </span></font></p>
<p class=MsoNormal style='line-height:10.0pt;text-autospace:none'><font size=2
color=black face="Times New Roman"><span style='font-size:10.0pt;color:black'> </span></font></p>
<p class=MsoNormal style='margin-right:-1.0pt;margin-bottom:0in;margin-left:
6.0pt;margin-bottom:.0001pt;line-height:12.0pt;text-autospace:none'><b><u><font
size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;
color:black;font-weight:bold'>Answer:</span></font></u><font color=black><span
style='color:black'> </span></font></b><font color=black><span
style='color:black'> No.</span></font></p>
<p class=MsoNormal style='line-height:6.1pt;text-autospace:none'><font size=1
color=black face="Times New Roman"><span style='font-size:6.0pt;color:black'> </span></font></p>
<p class=MsoNormal style='line-height:10.0pt;text-autospace:none'><font size=2
color=black face="Times New Roman"><span style='font-size:10.0pt;color:black'> </span></font></p>
<p class=MsoNormal style='margin-right:-1.0pt;margin-bottom:0in;margin-left:
6.0pt;margin-bottom:.0001pt;line-height:12.0pt;text-autospace:none'><b><u><font
size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;
color:black;font-weight:bold'>Comments</span></font></u></b><font color=black><span
style='color:black'>:</span></font></p>
<p class=MsoNormal style='line-height:13.9pt;text-autospace:none'><font size=4
color=black face="Times New Roman"><span style='font-size:13.0pt;color:black'> </span></font></p>
<p class=MsoNormal style='margin-right:33.4pt;margin-bottom:0in;margin-left:
6.0pt;margin-bottom:.0001pt;line-height:14.0pt;text-autospace:none'><font
size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;
color:black'>Section 3.2 defines “building envelope” to include
“the elements of a building…that enclose...spaces through which
thermal energy may be transferred to or from the exterior”.</span></font></p>
<p class=MsoNormal style='line-height:13.9pt;text-autospace:none'><font size=4
color=black face="Times New Roman"><span style='font-size:13.0pt;color:black'> </span></font></p>
<p class=MsoNormal style='margin-right:35.75pt;margin-bottom:0in;margin-left:
6.0pt;margin-bottom:.0001pt;line-height:14.0pt;text-autospace:none'><font
size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;
color:black'>Section 3.2, in the definition of “wall” states
“this includes above- and below-grade walls, between floor spandrels,
peripheral edges of floors, and foundation walls”.</span></font></p>
<p class=MsoNormal style='line-height:13.9pt;text-autospace:none'><font size=4
color=black face="Times New Roman"><span style='font-size:13.0pt;color:black'> </span></font></p>
<p class=MsoNormal style='margin-right:6.55pt;margin-bottom:0in;margin-left:
6.0pt;margin-bottom:.0001pt;line-height:14.0pt;text-autospace:none'><font
size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;
color:black'>Section 3.2 defines “gross wall area” as “the
area of the wall measured on the exterior face from the top of the floor to the
bottom of the roof”.</span></font></p>
<p class=MsoNormal style='line-height:13.9pt;text-autospace:none'><font size=4
color=black face="Times New Roman"><span style='font-size:13.0pt;color:black'> </span></font></p>
<p class=MsoNormal style='margin-right:4.75pt;margin-bottom:0in;margin-left:
6.0pt;margin-bottom:.0001pt;line-height:14.0pt;text-autospace:none'><font
size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;
color:black'>Therefore, for buildings with conditioned space below-grade, the
gross wall area extends from the top of the surface of the floor of the lowest
conditioned space to the bottom of the roof of the highest conditioned space.</span></font></p>
<p class=MsoNormal style='line-height:13.9pt;text-autospace:none'><font size=4
color=black face="Times New Roman"><span style='font-size:13.0pt;color:black'> </span></font></p>
<p class=MsoNormal style='margin-right:15.0pt;margin-bottom:0in;margin-left:
6.0pt;margin-bottom:.0001pt;line-height:14.0pt;text-autospace:none'><font
size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;
color:black'>(Note that the use of a similar term in a document from another
organization is irrelevant to an interpretation of Standard 90.1.)</span></font></p>
<p class=MsoNormal style='line-height:10.0pt;text-autospace:none'><font size=2
color=black face="Times New Roman"><span style='font-size:10.0pt;color:black'> </span></font></p>
<p class=MsoNormal style='margin-right:-1.0pt;margin-bottom:0in;margin-left:
6.0pt;margin-bottom:.0001pt;line-height:10.0pt;text-autospace:none'><font
size=2 color=black face="Times New Roman"><span style='font-size:10.0pt;
color:black'>Page 1 of
1
©2005 ASHRAE. All Rights reserved.</span></font></p>
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10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<div>
<p class=MsoNormal><font size=3 color=navy face="Times New Roman"><span
style='font-size:12.0pt;color:navy'>===================================== </span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Larry O. Degelman,
P.E. <a
href="mailto:ldegelman@cox.net">ldegelman@cox.net</a> </span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Prof. Emeritus of
Architecture Ph./Fax: 1-979-696-2506</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Texas</span></font><font size=2
color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'> </span></font><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'>A&M</span></font><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'> </span></font><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'>University</span></font></p>
<p class=MsoNormal><font size=3 color=navy face="Times New Roman"><span
style='font-size:12.0pt;color:navy'>=====================================</span></font></p>
<p class=MsoNormal><font size=3 color=navy face="Times New Roman"><span
style='font-size:12.0pt;color:navy'> </span></font></p>
</div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma'>-----Original Message-----<br>
<b><span style='font-weight:bold'>From:</span></b> BLDG-SIM@gard.com
[mailto:BLDG-SIM@gard.com] <b><span style='font-weight:bold'>On Behalf Of </span></b>Jon
McHugh<br>
<b><span style='font-weight:bold'>Sent:</span></b> </span></font><font size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>Sunday, April
23, 2006</span></font><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma'> </span></font><font size=2 face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma'>8:40 PM</span></font><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'><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] WWR definition</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> </span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 color=blue face=Arial><span
style='font-size:12.0pt;font-family:Arial;color:blue'>Rene, Larry and Gerald,</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> </span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 color=blue face=Arial><span
style='font-size:12.0pt;font-family:Arial;color:blue'>I think that the the
underground wall area should be included for each floor that has windows.
These windows in partially below ground stories are providing light and
views that are no less important than similar functions provided on upper floors.
However, if I have a skyscraper with 4 stories of underground garage of
basement areas, I don't think these fully underground wall areas should be
included. Rene, in evaluating the energy and cost impacts of windows
in buildings, it is important to look at the potential for daylighting or
the value of view, otherwise an engineering analysis might conclude that we
don't need any windows at all.</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> </span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 color=blue face=Arial><span
style='font-size:12.0pt;font-family:Arial;color:blue'>Perhaps this should be
brought up with the 90.1 envelope committee.</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> </span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 color=blue face=Arial><span
style='font-size:12.0pt;font-family:Arial;color:blue'>Sincerely,</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> </span></font></p>
<p style='margin-left:.5in'><font size=3 color=maroon face=Garamond><span
style='font-size:12.0pt;font-family:Garamond;color:maroon'><!-- Converted from text/rtf format -->Jon
McHugh, PE, LC<br>
Technical Director</span></font><br>
Heschong Mahone Group Inc.<br>
11626 Fair Oaks Blvd #302<br>
Fair Oaks, CA 95628 (Sacramento)<br>
(916)962-7001 ext 38<br>
(916)962-0101 FAX<br>
e-mail: mchugh@h-m-g.com<br>
URL: www.h-m-g.com </p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> </span></font></p>
<div style='margin-left:.5in'>
<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>
</div>
<p class=MsoNormal style='margin-right:0in;margin-bottom:12.0pt;margin-left:
.5in'><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'> </span></font><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>BLDG-SIM@GARD.COM</span></font><font
size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> [mailto:</span></font><font
size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>BLDG-SIM@GARD.COM</span></font><font
size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>] <b><span
style='font-weight:bold'>On Behalf Of </span></b>Renee J. Azerbegi<br>
<b><span style='font-weight:bold'>Sent:</span></b> </span></font><font size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>Sunday, April
23, 2006</span></font><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma'> </span></font><font size=2 face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma'>11:11 AM</span></font><font
size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'><br>
<b><span style='font-weight:bold'>To:</span></b> </span></font><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>BLDG-SIM@GARD.COM</span></font><font
size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'><br>
<b><span style='font-weight:bold'>Subject:</span></b> [BLDG-SIM] WWR definition</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'>It depends on the code in
use. </span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'>I submitted an official
request (CM proposal) to the ASHRAE 90.1 Envelope committee to change the
definition to only include the above grade walls but they declined it so it is
still the above and below grade walls. The reason I sent the request is that
architects tend to add more glazing to the above grade walls because they can
include the below grade walls in the definition. I showed some modeling results
of the difference between a two story building with one above and below grade
wall in a few difference cities in the </span></font><font size=2 color=navy
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:navy'>US</span></font><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'> and there was a significant energy impact.</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'>However, I believe the
IECC includes only the above grade walls. </span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'>Renée</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'> </span></font></p>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=navy face=Arial><span
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<p class=MsoNormal style='margin-left:.5in'><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'> </span></font><font
size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>BLDG-SIM@GARD.COM</span></font><font
size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> [mailto:</span></font><font
size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>BLDG-SIM@GARD.COM</span></font><font
size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>] <b><span
style='font-weight:bold'>On Behalf Of </span></b>Larry Degelman<br>
<b><span style='font-weight:bold'>Sent:</span></b> </span></font><font size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>Sunday, April
23, 2006</span></font><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma'> </span></font><font size=2 face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma'>10:26 AM</span></font><font
size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'><br>
<b><span style='font-weight:bold'>To:</span></b> </span></font><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>BLDG-SIM@GARD.COM</span></font><font
size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'><br>
<b><span style='font-weight:bold'>Subject:</span></b> [BLDG-SIM] </span></font></p>
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<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> </span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>Gerald et al,</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'> </span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>The conventional definition of
window-wall-ratio is the window area divided by the “gross” wall
area, though the term “window-wall-ratio” is no longer among the
Definitions section of 90.1-2004. For that matter, WWR is not defined in
the Abbreviations section.</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'> </span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>Notwithstanding all that, the
definition for “Gross Wall Area” is clearly defined in the
90.1-2004 User’s Manual.</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'> </span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>On page 5-30, example 5-G addresses
“Determining Gross Wall Area”, stating that this is very
significant since the window area requirements are based on Window-Wall-Ratio
(WWR). </span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'> </span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>Answer (as shown on the same
page): “The gross wall area includes both above-grade walls and
below-grade walls so that gross wall area is simply the perimeter of the
building … times the height…”</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'> </span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>Larry D.</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>===================================== </span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>Larry O. Degelman,
P.E. <a
href="mailto:ldegelman@cox.net">ldegelman@cox.net</a> </span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>Prof. Emeritus of
Architecture Ph./Fax: 1-979-696-2506</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>Texas</span></font><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'> </span></font><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>A&M</span></font><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> </span></font><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>University</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>=====================================</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> </span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>-----Original Message-----</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>From: BLDG-SIM@gard.com</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>To: BLDG-SIM@gard.com</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>Sent: Fri Apr 21 </span></font><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>09:06:56</span></font><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> 2006</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>Subject: [BLDG-SIM] ASHRAE 90.1
window-wall ratio</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'> </span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>I recently came across a paper from
"Building Energy</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>Codes Program" called
"Setting the Standard" and lists</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>out various new code updates. It
seems that currently</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>we are allowed to count below-grade
walls as part of</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>the window-wall ratio
calculations. Does anyone have</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>an update on this or point me to the
right resource to</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>confirm this information?</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'> </span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>Thanks.</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>Gerald</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'> </span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>__________________________________________________</span></font></p>
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style='font-size:10.0pt;font-family:Arial'>Do You Yahoo!?</span></font></p>
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style='font-size:10.0pt;font-family:Arial'>Tired of spam? Yahoo! Mail has
the best spam protection around </span></font></p>
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style='font-size:10.0pt;font-family:Arial'><a href="http://mail.yahoo.com/">http://mail.yahoo.com</a>
</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'> </span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>======================================================</span></font></p>
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style='font-size:12.0pt'> </span></font></p>
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