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<DIV dir=ltr align=left>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN class=292560316-19092007><SPAN
class=993495817-19092007>Hi, </SPAN></SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN class=292560316-19092007><SPAN
class=993495817-19092007></SPAN></SPAN></FONT> </DIV>
<DIV><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=993495817-19092007>For a new building addition 5000sqft tied into
existing 30,000sqft building, when the HVAC system is tied into the existing
chiller and boiler plant, does it mean I will need to model the whole building
new and existing? From interpretations of ASHRAE 90.1-2004 appendix G, table
G3.1, "on alterations and additions", it sort of listed the new building will
need to be completely excluded from existing HVAC in order to be modeled
separately. </SPAN></FONT></FONT></FONT></DIV>
<DIV><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=993495817-19092007></SPAN></FONT></FONT></FONT> </DIV>
<DIV><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=993495817-19092007>And how will the LEED credit be accounted for EA credit
1?</SPAN></FONT></FONT></FONT></DIV>
<DIV><SPAN class=292560316-19092007><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV></DIV>
<DIV> </DIV>
<DIV align=left><SPAN style="FONT-SIZE: 10pt">
<DIV align=left>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt" align=left><SPAN
style="FONT-FAMILY: Arial"><FONT size=2>Xia Fang, PE, LEED AP</FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><SPAN style="FONT-SIZE: 10pt">EMC
Engineers, Inc.</SPAN><BR><A title=http://www.emcengineers.com/
href="http://www.emcengineers.com/"><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">www.emcengineers.com</SPAN></A><BR><B>Making
buildings work. <SPAN style="COLOR: red">Better.</SPAN></B><BR><SPAN
style="FONT-SIZE: 10pt">(303) 974-1232</SPAN><BR><SPAN
style="FONT-SIZE: 10pt">(303) 974-1239 (fax)</SPAN></P>
<P><SPAN style="FONT-SIZE: 10pt"></SPAN> </P></DIV></SPAN></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>D. Charlie
Curcija<BR><B>Sent:</B> Monday, April 09, 2007 1:52 PM<BR><B>To:</B>
BLDG-SIM@gard.com<BR><B>Subject:</B> [BLDG-SIM] ASHRAE 90.1 - window
SHGC<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV dir=ltr align=left><SPAN class=046554819-09042007><FONT face=Arial
color=#0000ff>Vikram,</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=046554819-09042007><FONT face=Arial
color=#0000ff></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=046554819-09042007><FONT face=Arial
color=#0000ff>Perhaps you are using older version of IGDB in WINDOW 5.2.
The PPG's Solarban 70XL is available in IGDB from ID 5431 to 5434 in thicknesses
from 2 to 5 mm. To update IGDB in WINDOW 5, go to windows.lbl.gov web
site, navigate to WINDOW program pages and see instructions how to update
IGDB.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=046554819-09042007><FONT face=Arial
color=#0000ff></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=046554819-09042007><FONT face=Arial
color=#0000ff>Regards,</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=046554819-09042007><FONT face=Arial
color=#0000ff>Charlie</FONT></SPAN></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>Vikram Sami<BR><B>Sent:</B>
Monday, April 09, 2007 2:20 PM<BR><B>To:</B>
BLDG-SIM@gard.com<BR><B>Subject:</B> [BLDG-SIM] ASHRAE 90.1 - window
SHGC<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV dir=ltr align=left><SPAN class=090061218-09042007><FONT face=Arial
color=#0000ff size=2>Correct me if I'm wrong, but I think your
design building can vary from the 90.1 prescriptions (at least for the
ECB which is what I am assuming your using it for - give the design case
reference). For example if you use daylight sensors and you want to use a
lighter glass to take advantage of it, I think you can as long as there's an
overall energy savings - am I correct?</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=090061218-09042007><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=090061218-09042007><FONT face=Arial
color=#0000ff size=2>Speaking of high performance glass - I am trying to model
PPG's Solarban 70, and it doesn't seem to be available in the window 5.2
database. (Its a new product with a 0.63 Tviz & 0.27 SHGC - a light to solar
gain ratio of 2.33). Is it possible to manipulate the numbers in Window 5.2? Is
the simplified glazing option acceptable for 90.1 ECB
analyses?</FONT></SPAN></DIV>
<DIV><FONT face=Arial color=#0000ff size=2></FONT> </DIV><!-- Converted from text/rtf format -->
<P><B><FONT face=Garamond color=#000000>Vikram Sami,</FONT></B> <FONT
face=Garamond color=#000000>LEED AP</FONT><B></B> <BR><FONT face=Garamond
color=#000000>Direct Phone 404-253-1466 | Direct Fax 404-253-1366</FONT> </P>
<P><B><FONT face=Garamond color=#800000>L</FONT><FONT face=Garamond
color=#800000 size=2>ORD</FONT><FONT face=Garamond color=#800000>, A</FONT><FONT
face=Garamond color=#800000 size=2>ECK</FONT><FONT face=Garamond color=#800000>
& S</FONT><FONT face=Garamond color=#800000 size=2>ARGENT</FONT><FONT
face=Garamond color=#800000> A</FONT><FONT face=Garamond color=#800000
size=2>RCHITECTURE</FONT><BR></B><FONT face=Garamond size=2>Responsive
Design</FONT> <FONT face=Symbol size=1>·<FONT face="Courier New"></FONT></FONT>
<FONT face=Garamond size=2>Technological Expertise</FONT> <FONT face=Symbol
size=1>·<FONT face="Courier New"></FONT></FONT> <FONT face=Garamond
size=2>Exceptional Service</FONT> <BR><FONT face=Garamond
color=#000000>www.lordaecksargent.com</FONT> </P>
<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>D. Charlie
Curcija<BR><B>Sent:</B> Monday, April 09, 2007 8:50 AM<BR><B>To:</B>
BLDG-SIM@gard.com<BR><B>Subject:</B> [BLDG-SIM] ASHRAE 90.1 - window
SHGC<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV dir=ltr align=left><SPAN class=437263312-09042007><FONT face=Arial
color=#0000ff>International Glazing Database (IGDB), which is part of WINDOW 5.2
program (windows.lbl.gov) contains several hundred individual glass layers whose
solar transmittance is at or below 0.3, which, as a part of glazing system and
whole fenestration product, would produce SHGC of 0.25 or lower, which meets
ASHRAE 90.1 for all climate zones. The best choice for low SHGC windows is
so called spectrally selective low-e, and there are at least 100 glass
products with this type of low-e coating. The cost of these products is
only marginally higher than the cost of clear glass.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=437263312-09042007><FONT face=Arial
color=#0000ff></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=437263312-09042007><FONT face=Arial
color=#0000ff>I think that you are definitely overlooking
something.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=437263312-09042007><FONT face=Arial
color=#0000ff></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=437263312-09042007><FONT face=Arial
color=#0000ff>Having said that, I do want to state that the use of low SHGC
products in heating dominated climates (anything at or above climate zone 5) is
wrong and is the major flaw of both ASHRAE 90.1 and IECC 2006, particularly for
orientations with potentially high solar gain in the winter, such as South
orientation.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=437263312-09042007><FONT face=Arial
color=#0000ff></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=437263312-09042007><SPAN
class=453152915-31052005><FONT face=Arial>D. Charlie Curcija</FONT></SPAN></DIV>
<DIV dir=ltr align=left>
<DIV align=left>
<DIV dir=ltr align=left><SPAN class=453152915-31052005><FONT face=Arial>Carli,
Inc.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=453152915-31052005><FONT face=Arial>18
Tanglewood Rd.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=453152915-31052005><FONT face=Arial>Amherst,
MA 01002</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=453152915-31052005><FONT
face=Arial></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=453152915-31052005><FONT face=Arial>Tel:
(413) 256-4647</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=453152915-31052005><FONT face=Arial>Fax:
(413) 256-4823</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=453152915-31052005><FONT face=Arial>cell:
(413) 575-3487</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=453152915-31052005><FONT face=Arial>email:
</FONT><A href="blocked::mailto:curcija@fenestration.com"><FONT
face=Arial>curcija@fenestration.com</FONT></A></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=453152915-31052005><FONT face=Arial>web:
</FONT><A href="http://www.fenestration.com/"><FONT
face=Arial>http://www.fenestration.com</FONT></A></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=453152915-31052005><FONT
face=Arial></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=453152915-31052005>
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<DIV dir=ltr align=left><SPAN class=453152915-31052005><SPAN
class=453152915-31052005><FONT size=2><STRONG><EM><FONT size=3><SPAN
class=453152915-31052005><SPAN class=453152915-31052005><FONT
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class=453152915-31052005><FONT size=2><SPAN class=453152915-31052005><SPAN
class=453152915-31052005><STRONG><EM><FONT face=Arial><FONT size=3><SPAN
class=640374411-20062006>S</SPAN>upport open document format as the <SPAN
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</EM></STRONG></FONT></SPAN></SPAN></FONT></EM></STRONG>
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<DIV dir=ltr align=left><SPAN class=453152915-31052005><FONT size=2><FONT
face=Arial>STATEMENT OF CONFIDENTIALITY<BR>The information contained in this
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<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>Scott Runyon<BR><B>Sent:</B>
Monday, April 09, 2007 7:52 AM<BR><B>To:</B>
BLDG-SIM@gard.com<BR><B>Subject:</B> [BLDG-SIM] ASHRAE 90.1 - window
SHGC<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV class=Section1>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">When modeling my design case, I
find that most windows cannot achieve the minimum SHGC suggested in ASHRAE
90.1.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">Why would ASHRAE set unattainable
minimum values? <o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">Am I overlooking something in
ASHRAE 90.1???<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">Any help would be
appreciated.<o:p></o:p></SPAN></FONT></P>
<P><FONT face=Verdana size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">Thanks,<o:p></o:p></SPAN></FONT></P>
<P><FONT face=Verdana size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">Scott<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P></DIV><PRE>==================
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