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<title>Infiltration in a frame wall with batts vs Isynene or Airkrete</title>
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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'><!-- Converted from text/rtf format -->Mike,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>I carried out a field study in 1996 of
whole-house air infiltration.<span style='mso-spacerun:yes'> </span>The
study was quite extensive and examined how several different treatments affect
airtightness, but also what contribution the components of the house (ceiling,
walls, windows/doors, <span class=GramE>floor</span>) make.<span
style='mso-spacerun:yes'> </span>The study involved hundreds of tests of
overall airtightness and produced excellent repeatability. <span
style='mso-spacerun:yes'> </span>We did not study the products you
mentioned but did look at wet-blown cellulose and blown fiberglass, among
others.<span style='mso-spacerun:yes'> </span><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Some of the results are fairly
surprising:<span style='mso-spacerun:yes'> </span>the walls accounted for
only 14% of leakage, and wall cavity insulation had no measurable effect on
overall tightness of the house. <span style='mso-spacerun:yes'> </span>In
one test we removed all of the insulation from the wall cavity and the overall
infiltration increased 1.5%.<span style='mso-spacerun:yes'>
</span>Drywall turned out to be the dominant barrier in the wall.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>The results of the study can be found in
the proceedings of the 1997 Excellence in Building Conference of the Energy
Efficient Building Association:<o:p></o:p></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
style='mso-spacerun:yes'> </span>“A Field Study of Whole House Air Infiltration
in Residences”, G.K Yuill, <span class=SpellE>Ph.D</span>, and D.P Yuill,
</span></font><st1:date Month="10" Day="7" Year="1997"><font size=2 color=navy
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:navy'>October
7, 1997</span></font></st1:date><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'>.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>I hope this helps.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>David P. Yuill<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Principal<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>===============<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Building Solutions Inc.<o:p></o:p></span></font></p>
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style='font-size:10.0pt;font-family:Arial;color:navy'>2202 S. 60th St</span></font></st1:address></st1:Street><font
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color:navy'><o:p></o:p></span></font></p>
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color:navy'>, </span></font><st1:State><font size=2 color=navy face=Arial><span
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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'>402.556.3382<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>bsiEngineering.com<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>===============<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<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> postman@gard.com
[mailto:postman@gard.com] <b><span style='font-weight:bold'>On Behalf Of </span></b>Mike
Tillou<br>
<b><span style='font-weight:bold'>Sent:</span></b> Tuesday, October 19, 2004
9:42 AM<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] Infiltration
in a frame wall with batts vs Isynene or Airkrete</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<p style='margin-left:.5in'><font size=2 face=Arial><span style='font-size:
10.0pt;font-family:Arial'>Hi all,</span></font> <o:p></o:p></p>
<p style='margin-left:.5in'><font size=2 face=Arial><span style='font-size:
10.0pt;font-family:Arial'>I am looking for any research results / papers that
have been done on the infiltration rates of frame walls with insulating batts
versus a product like Isynene or Airkrete that expands to fill the entire
cavity. Has anything like this been published or researched?</span></font><o:p></o:p></p>
<p style='margin-left:.5in'><font size=2 face=Arial><span style='font-size:
10.0pt;font-family:Arial'>Thanks for your help.</span></font> <o:p></o:p></p>
<p style='margin-left:.5in'><font size=2 face=Arial><span style='font-size:
10.0pt;font-family:Arial'>Mike</span></font> <o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:0in;margin-right:0in;margin-bottom:
12.0pt;margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<p style='margin-left:.5in'><b><font size=2 face=Arial><span style='font-size:
10.0pt;font-family:Arial;font-weight:bold'>Michael Tillou, PE<br>
etc Group, Inc.<br>
PO Box 7, Williamstown, MA 01267<br>
ph. (413) 458-9870 fx. (413) 458-9875<br>
</span></font><br>
</b><b><font face="Arial Narrow"><span style='font-family:"Arial Narrow";
font-weight:bold'> </span></font></b><font face=Arial><span
style='font-family:Arial'> </span></font><o:p></o:p></p>
<pre style='margin-left:.5in'><font size=2 face="Courier New"><span
style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre
style='margin-left:.5in'><font size=2 face="Courier New"><span
style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre
style='margin-left:.5in'><font size=2 face="Courier New"><span
style='font-size:10.0pt'>==================<o:p></o:p></span></font></pre><pre
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