That is the answer i was expecting to here.  thanks for your input<br><br><div class="gmail_quote">On Thu, Apr 22, 2010 at 12:27 PM, Bruce Easterbrook <span dir="ltr"><<a href="mailto:bruce5@bellnet.ca">bruce5@bellnet.ca</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">


  

<div bgcolor="#ffffff" text="#000000">
<font face="Times New Roman, Times, serif">That doesn't sound right. 
Poured</font> concrete has an R-value around 0.08/inch.  When
"effective" is used commercially it normally is a hocus pocus addition
for the mass effect but shouldn't be much more than 10%.  eQuest would
calculate it as a lag effect based on the mass, so a steady state value
would be most appropriate.<br>
Bruce Easterbrook<div class="im"><br>
<br>
On 22/04/2010 10:38 AM, Rob Hudson wrote:
</div><blockquote type="cite"><div class="im">When creating a model, i noticed that the R-value of the
concrete i am using is the "effective" R-value, rated at 22.  Should i
use this or should i ask the concrete manufacturer for a steady-state
R-value which will be much more accurate based on the materials?<br clear="all">
  <br>
-- <br>
Rob Hudson<br>
  </div><pre><fieldset></fieldset>
_______________________________________________
Equest-users mailing list
<a href="http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org" target="_blank">http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org</a>
To unsubscribe from this mailing list send  a blank message to <a href="mailto:EQUEST-USERS-UNSUBSCRIBE@ONEBUILDING.ORG" target="_blank">EQUEST-USERS-UNSUBSCRIBE@ONEBUILDING.ORG</a>
  </pre>
</blockquote>
</div>

<br>_______________________________________________<br>
Equest-users mailing list<br>
<a href="http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org" target="_blank">http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org</a><br>
To unsubscribe from this mailing list send  a blank message to <a href="mailto:EQUEST-USERS-UNSUBSCRIBE@ONEBUILDING.ORG">EQUEST-USERS-UNSUBSCRIBE@ONEBUILDING.ORG</a><br>
<br></blockquote></div><br><br clear="all"><br>-- <br>Rob Hudson<br>