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<div> <font face="Arial, Helvetica, sans-serif">Ken, Polly Cooper and Jennifer Rennick's chapter that John mention's in that Wiley book - Alternative Construction: Contemporary Natural Building Methods, </font>has a lot of information on this though they don't use the term "decrement." They talk about this issue with straw and other types of wall systems and go into considerable detail. I would get in touch with them and see what they have to say. <br>
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David Eisenberg<br>
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<div style="font-family:helvetica,arial;font-size:10pt;color:black"><font color="black" face="arial" size="2">-----Original Message-----<br>
From: Laura Bartels <laura@greenweaverinc.com><br>
To: Global Straw Building Network <GSBN@sustainablesources.com><br>
Sent: Mon, Nov 28, 2011 3:40 pm<br>
Subject: Re: [GSBN] Decrement factor of SB walls<br>
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Hi Martin,
<div>Without going back to the details, I could be mistaken, but it seems that a study by Ken Haggard a while back addressed this or similar properties. I found reference in a GSBN email from '07- see below. Is this the same metric?</div>
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<div>Laura</div>
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<div>John,<br>
<br>
There is that chapter from Ken Haggard and Polly Cooper on Natural<br>
Conditioning in the book Alternative Construction where they look at<br>
this. I was looking at it just recently for some curriculum development.<br>
<br>
Laura<br>
<br>
John Swearingen wrote:<br>
<br>
<blockquote type="cite">Very interesting paper, and well written. Some time ago I remember hearing<br>
</blockquote><blockquote type="cite">someone toss out some similar observations about thermal storage, that on a<br>
</blockquote><blockquote type="cite">diurnal cycle, plaster is activated to a depth of about 2-3 inches<br>
</blockquote><blockquote type="cite">(5cm -7.5cm). I have always figured that the exceptional thermal<br>
</blockquote><blockquote type="cite">performance of<br>
</blockquote><blockquote type="cite">straw bale buildings is not due solely to the high R-value. The broad<br>
</blockquote><blockquote type="cite">thermal mass of the plastered walls, readily available to indoor air for<br>
</blockquote><blockquote type="cite">heat exchange, modulates temperatures like my pink Cadillac modulates bumps<br>
</blockquote><blockquote type="cite">in the road.<br>
</blockquote><blockquote type="cite"><br>
</blockquote><blockquote type="cite">Does anyone know of research and measurements of short and medium thermal<br>
</blockquote><blockquote type="cite">storage in walls?<br>
</blockquote><blockquote type="cite"><br>
</blockquote><blockquote type="cite">John "Diurnally Yours" Swearingen</blockquote></div>
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