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<DIV><SPAN class=024533114-09052006><FONT face=Arial color=#0000ff size=2>I
reccomend the Building Envelopes Program website. They are a part of the
Buildings Technology Center at Oakridge National Lab.</FONT></SPAN></DIV>
<DIV><SPAN class=024533114-09052006><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=024533114-09052006><FONT face=Arial color=#0000ff size=2><A
href="http://www.ornl.gov/sci/roofs+walls/">http://www.ornl.gov/sci/roofs+walls/</A></FONT></SPAN></DIV>
<DIV><SPAN class=024533114-09052006><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=024533114-09052006><FONT face=Arial color=#0000ff size=2>The
R-value database they have created is a really good resource.
</FONT></SPAN></DIV>
<DIV><SPAN class=024533114-09052006><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=024533114-09052006><FONT face=Arial color=#0000ff
size=2>Another good source is ASHRAE's "Heat Tramission Coefficients for Walls,
Roofs, Ceilings and Floors".</FONT></SPAN></DIV>
<DIV><SPAN class=024533114-09052006><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=024533114-09052006><FONT face=Arial color=#0000ff
size=2>Mike</FONT></SPAN></DIV>
<DIV><SPAN class=024533114-09052006><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=024533114-09052006><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV><!-- Converted from text/rtf format -->
<P><SPAN lang=en-us><B><FONT face=Arial size=2>Michael Tillou, PE<BR>etc Group,
Inc.<BR>PO Box 7, Williamstown, MA 01267<BR>ph. (413) 458-9870 fx. (413)
458-9875<BR></FONT></B></SPAN></P>
<DIV><SPAN lang=en-us><B><FONT face=Arial size=2></FONT></B></SPAN> </DIV>
<DIV><SPAN lang=en-us><B><FONT face=Arial size=2></FONT> </DIV>
<P><BR></P></B></SPAN>
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<DIV></DIV>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left><FONT
face=Tahoma size=2>-----Original Message-----<BR><B>From:</B>
bldg-sim@gard.com [mailto:bldg-sim@gard.com] <B>On Behalf Of </B>Aleka
Pappas<BR><B>Sent:</B> Tuesday, May 09, 2006 9:54 AM<BR><B>To:</B>
bldg-sim@gard.com<BR><B>Subject:</B> [bldg-sim] Batt Insulation
Derating<BR><BR></FONT></DIV>
<DIV class=Section1>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Hi
all,<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Does anyone know of any good
values/research to use for derating the R-value of batt insulation in a
(residential) wall stud cavity as it settles over time? I’ve heard
recently that an R-19 can often perform around R-13, and would like to find a
second source.<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">Thanks,<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Aleka<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 Narrow" color=#339966 size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: #339966; FONT-FAMILY: 'Arial Narrow'">Aleka
Pappas</SPAN></FONT><FONT color=#339966><SPAN
style="COLOR: #339966"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Arial Narrow" color=#339966 size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: #339966; FONT-FAMILY: 'Arial Narrow'">***********************************</SPAN></FONT><FONT
color=#339966><SPAN style="COLOR: #339966"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Arial Narrow" color=#339966 size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: #339966; FONT-FAMILY: 'Arial Narrow'">Enermodal
Engineering, Inc.</SPAN></FONT><FONT color=#339966><SPAN
style="COLOR: #339966"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Arial Narrow" color=#339966 size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: #339966; FONT-FAMILY: 'Arial Narrow'"><A
href="http://www.enermodal.com"><FONT color=#339966><SPAN
style="COLOR: #339966">www.enermodal.com</SPAN></FONT></A></SPAN></FONT><FONT
color=#339966><SPAN style="COLOR: #339966"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Arial Narrow" color=#339966 size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: #339966; FONT-FAMILY: 'Arial Narrow'">Denver,
CO</SPAN></FONT><FONT color=#339966><SPAN
style="COLOR: #339966"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Arial Narrow" color=#339966 size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: #339966; FONT-FAMILY: 'Arial Narrow'">tel:
303.861.2070</SPAN></FONT><FONT color=#339966><SPAN
style="COLOR: #339966"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Arial Narrow" color=#339966 size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: #339966; FONT-FAMILY: 'Arial Narrow'">fax:
303.830.2016</SPAN></FONT><FONT color=#339966><SPAN
style="COLOR: #339966"><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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