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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Gerald et al,</span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>

<p class=MsoNormal><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><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>

<p class=MsoNormal><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><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>

<p class=MsoNormal><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><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>

<p class=MsoNormal><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><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Larry D.</span></font></p>

<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>===================================== </span></font></p>

<p class=MsoNormal><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><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><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><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>=====================================</span></font></p>

<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> </span></font></p>

<p class=MsoNormal style='text-autospace:none'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>-----Original Message-----</span></font></p>

<p class=MsoNormal style='text-autospace:none'><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='text-autospace:none'><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='text-autospace:none'><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='text-autospace:none'><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='text-autospace:none'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'> </span></font></p>

<p class=MsoNormal style='text-autospace:none'><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='text-autospace:none'><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='text-autospace:none'><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='text-autospace:none'><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='text-autospace:none'><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='text-autospace:none'><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='text-autospace:none'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>confirm this information?</span></font></p>

<p class=MsoNormal style='text-autospace:none'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'> </span></font></p>

<p class=MsoNormal style='text-autospace:none'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>Thanks.</span></font></p>

<p class=MsoNormal style='text-autospace:none'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>Gerald</span></font></p>

<p class=MsoNormal style='text-autospace:none'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'> </span></font></p>

<p class=MsoNormal style='text-autospace:none'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>__________________________________________________</span></font></p>

<p class=MsoNormal style='text-autospace:none'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>Do You Yahoo!?</span></font></p>

<p class=MsoNormal style='text-autospace:none'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>Tired of spam?  Yahoo! Mail has
the best spam protection around </span></font></p>

<p class=MsoNormal style='text-autospace:none'><font size=2 face=Arial><span
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='text-autospace:none'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'> </span></font></p>

<p class=MsoNormal style='text-autospace:none'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>======================================================</span></font></p>

<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> </span></font></p>

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