<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type">
<title></title>
</head>
<body bgcolor="#ffffff" text="#000000">
Jrr wrote;<br>
<br>
Steel studs without Styrofoam sheathing is a loosing design choice.
Period.<br>
The XPS sheathing should be 1" or 1.5" ; 3/4 inch is not enough.<br>
<br>
Energy 10 will calculate the effective R values in a handy format. So
will TREAT.<br>
<br>
Kevin Kyte wrote:<br>
<blockquote cite="mid00a201c86da4$99836b50$cc8a41f0$@com" type="cite">
<pre wrap="">This may help.
<a class="moz-txt-link-freetext" href="http://www.maconline.org/designalert.PDF">http://www.maconline.org/designalert.PDF</a>
Kevin Kyte, LEED AP
RobsonWoese, Inc.
(T) 716-636-1800
(F) 716-636-1856
<a class="moz-txt-link-rfc2396E" href="http://robsonwoese.com/index.php"><http://robsonwoese.com/index.php></a> <a class="moz-txt-link-freetext" href="http://robsonwoese.com">http://robsonwoese.com</a>
From: <a class="moz-txt-link-abbreviated" href="mailto:bldg-sim-bounces@lists.onebuilding.org">bldg-sim-bounces@lists.onebuilding.org</a>
[<a class="moz-txt-link-freetext" href="mailto:bldg-sim-bounces@lists.onebuilding.org">mailto:bldg-sim-bounces@lists.onebuilding.org</a>] On Behalf Of Howe, Timothy
Sent: Tuesday, February 12, 2008 1:07 PM
To: <a class="moz-txt-link-abbreviated" href="mailto:bldg-sim@lists.onebuilding.org">bldg-sim@lists.onebuilding.org</a>
Subject: [Bldg-sim] Metal Building R-19 cavity insulation U-factor
I have a metal building wall construction with R-19 insulation between the
girts.
Now in ASHRAE 90.1-2004 Appendix A, Table A3.2 the single layer of mineral
fiber only goes up to R-13.
Any suggestion on how to determine the U-Factor for this wall?
Thanks.
Tim.
Timothy Howe
Mechanical Engineer
Stantec
</pre>
<pre wrap="">
<hr size="4" width="90%">
_______________________________________________
Bldg-sim mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Bldg-sim@lists.onebuilding.org">Bldg-sim@lists.onebuilding.org</a>
<a class="moz-txt-link-freetext" href="http://lists.onebuilding.org/listinfo.cgi/bldg-sim-onebuilding.org">http://lists.onebuilding.org/listinfo.cgi/bldg-sim-onebuilding.org</a>
</pre>
</blockquote>
</body>
</html>