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<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=206060814-05092007>Fred,</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=206060814-05092007>(90.1-2004)Appendix G, table G3.1, section 5 on right
side under baseline opaque assemblies, for floor it says to model as steel
joist. So yes, by modeling your proposed design with concrete you do get
the benefit of MASS.</SPAN></FONT></DIV>
<DIV> </DIV>
<DIV align=left>
<P style="MARGIN: 0in 0in 0pt" align=left><SPAN
style="FONT-SIZE: 11pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.0pt"><FONT
size=2>Leonard Sciarra, AIA, LEED ap<o:p></o:p></FONT></SPAN></P>
<P style="MARGIN: 0in 0in 0pt"><SPAN
style="FONT-SIZE: 11pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.0pt"><FONT
size=2>312.577.6580 (Dir)</FONT></SPAN></P>
<P style="MARGIN: 0in 0in 0pt"><SPAN
style="FONT-SIZE: 11pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.0pt"><FONT
size=2>G E N S L E R | Architecture & Design Worldwide</FONT></SPAN></P>
<P style="MARGIN: 0in 0in 0pt"><SPAN
style="FONT-SIZE: 11pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.0pt"><FONT
size=2>30 West Monroe Street<o:p></o:p></FONT></SPAN></P>
<P style="MARGIN: 0in 0in 0pt"><SPAN
style="FONT-SIZE: 11pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.0pt"><FONT
size=2>Chicago IL, 60603<o:p></o:p></FONT></SPAN></P>
<P style="MARGIN: 0in 0in 0pt"><SPAN
style="FONT-SIZE: 11pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.0pt"><FONT
size=2>312.456.0123<o:p></o:p></FONT></SPAN></P>
<P style="MARGIN: 0in 0in 0pt"><SPAN
style="FONT-SIZE: 11pt; FONT-FAMILY: Arial; mso-bidi-font-size: 10.0pt"><FONT
size=2>leonard_sciarra@gensler.com <o:p></o:p></FONT></SPAN></P></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>Fred Porter<BR><B>Sent:</B>
Tuesday, September 04, 2007 4:48 PM<BR><B>To:</B>
BLDG-SIM@gard.com<BR><B>Subject:</B> [BLDG-SIM] Interior Thermal mass in App G
baseline<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV class=Section1>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Does anyone have an opinion, or
sense of the intent on the following:<o:p></o:p></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">App G is fairly clear that the
baseline EXTERIOR walls are "lightweight," and metal-framed. Floors & walls
are mentioned, but referenced to exterior ENVELOPE constructions and U-factors.
<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">The U-M states the "baseline
building is assumed to be steel-framed," but then goes on to state "if the
proposed building has thermal mass in the EXTERIOR construction... then the mass
is credited."<o:p></o:p></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">So, if a proposed building has
poured concrete frame and floors, can/should the baseline building be modeled
with "light weight," "steel joist" interior floors? Or is this a characteristic
which is not specifically defined for the baseline, and thus the baseline should
be the same as the proposed?<o:p></o:p></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT> </P>
<P class=MsoNormal><FONT face="Courier New" size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'">--</SPAN></FONT><o:p></o:p>
</P>
<P class=MsoNormal><FONT face="Courier New" size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'">Fred
Porter<o:p></o:p></SPAN></FONT> </P>
<P class=MsoNormal><FONT face="Courier New" size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'">Architectural Energy
Corp.<o:p></o:p></SPAN></FONT> </P>
<P class=MsoNormal><FONT face="Courier New" size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"><o:p> </o:p></SPAN></FONT>
</P>
<P class=MsoNormal><FONT face="Times New Roman" size=2><o:p> </o:p></FONT>
</P></DIV><PRE>
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