<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><div><div><div><br><div><br></div><div><br><div>
<div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div>Agnes NOVAK, Dr. PhD</div><div>Moholy Nagy University of Art and Design, Budapest,</div><div><a href="mailto:novag@labor5.hu">novag@labor5.hu</a></div><div>+36 20 933 1547</div><div><br></div></div><br class="Apple-interchange-newline"><br class="Apple-interchange-newline">
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<br><div><div>On Apr 30, 2013, at 7:10 AM, מיכל ויטל wrote:</div><br class="Apple-interchange-newline"><div dir="rtl"><div dir="ltr" style="">Hello Bruce and friends</div><div dir="ltr" style="">i have here in Israel 2 projects involve light straw as exterior / interior insulation, so it had to dry only from one side. one is with metal wall and the other with earth blocks.</div>
<div dir="ltr" style="">(you can watch pictures of the second one here:<a href="http://www.vital-baron.com/projects/%D7%91%D7%99%D7%AA-%D7%91%D7%91%D7%A0%D7%99%D7%94-%D7%98%D7%91%D7%A2%D7%99%D7%AA--%D7%91%D7%93%D7%A8%D7%95%D7%9D">http://www.vital-baron.com/projects/%D7%91%D7%99%D7%AA-%D7%91%D7%91%D7%A0%D7%99%D7%94-%D7%98%D7%91%D7%A2%D7%99%D7%AA--%D7%91%D7%93%D7%A8%D7%95%D7%9D</a>. the website is only in hebrew at the moment bit if you scroll down there are images)</div>
<div dir="ltr" style="">we had no drying problemsin our hot dry summer, but in the first project it was akready november and we had to wait 3 weeks for drying.</div><div dir="ltr" style="">The combination of light straw with heavy wall is working very well thermaly</div>
<div dir="ltr" style=""><br></div><div dir="ltr" style="">Michal Vital</div><div dir="ltr" style="">Vital-Rosenberg Architects</div><div dir="ltr" style="">Israel </div></div><div class="gmail_extra"><br><br><div class="gmail_quote">
<div dir="ltr">2013/4/30 Jacob Deva Racusin <span dir="ltr"><<a href="mailto:buildnatural@googlemail.com" target="_blank">buildnatural@googlemail.com</a>></span></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<div>I'm not sure if phasing is an option,
but if so and the cob were allowed to dry for a season with the
straw-clay applied the following year, the cob could turn from a
drying liability to a drying asset, given the hydrophilic nature
of the clay. I'm really not sure if it would be better than a
strong breeze (air-dried), but you'd certainly get that from the
outside. It would require phased drying, though, which may not
play out well in the construction schedule...<br>
<br>
Kevin, great to hear you are using rice hulls, our company has
been looking into playing with them but haven't had the right job
- that an transporting a container of rice hulls from two days'
drive away has been unappealing. But it sure seems like a
material with lots of potential if the resource is available.<br>
<br>
Jacob<span class="HOEnZb"><font color="#888888"><br>
<pre cols="72">Jacob Deva Racusin
New Frameworks Natural Building, LLC
P.O. Box 15, Montgomery, VT 05470
(802) 782-7783 (c)
(802) 326-2209 (h)
<a href="http://www.newframeworks.com/" target="_blank">www.newframeworks.com</a>
<a href="mailto:jacob@newframeworks.com" target="_blank">jacob@newframeworks.com</a></pre></font></span><div><div class="h5">
On 4/29/2013 1:32 PM, Paula Baker-Laporte wrote:<br>
</div></div></div><div><div class="h5">
<blockquote type="cite">My concern would also be that the straw clay would
only be able to dry from one side and that the cob would add to
the moisture content for a long time...too long to dry the wall
out safely.
<div>Building the straw clay wall first and then adding something
like adobe to the interior could work.</div>
<div>
<div>Paula<br>
<br>
<div class="gmail_quote">On Mon, Apr 29, 2013 at 10:07 AM,
Chris Magwood <span dir="ltr"><<a href="mailto:chris@endeavourcentre.org" target="_blank">chris@endeavourcentre.org</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000"> My concern would be
drying for the straw/clay. We have a hard time getting
straw/clay to dry in our warm but humid summer. We count
on a week per inch of wall thickness, and that's with
both sides of the wall exposed. Sometimes we have to
help things along with a fan on the interior because the
drying is slower in the still air. With one side of the
straw/clay up against cob (which may still be drying
itself?) I would worry about the straw/clay not drying
out at all before it starts to get mushy in there.<br>
<br>
What about double wythe cob with a dry insulation in
between? <br>
<br>
Chris<br>
<br>
On 13-04-29 11:38 AM, Bruce King wrote:
<blockquote type="cite">
<div><br>
</div>
<div>A client in North Carolina (mixed climate, no
earthquakes) wants to build a large assembly
structure on load-bearing cob, which doesn't
insulate too well. He doesn't want to use bales
with thick earthen plaster, either.</div>
<div><br>
</div>
So our idea was to build a wall that would look like
this, from inside to out:
<div><br>
</div>
<div>14" -- 18" of load-bearing cob</div>
<div>8" -- 12" of light straw-clay</div>
<div>lime plaster</div>
<div><br>
</div>
<div>Has anyone already done this, or heard of it?
Any reports of comments?<br>
<div>
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<span><font color="#888888"> </font></span></blockquote>
<span><font color="#888888"> <br>
<pre cols="72">--
Chris Magwood
Director, Endeavour Centre
<a href="http://www.endeavourcentre.org/" target="_blank">www.endeavourcentre.org</a></pre>
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Paula Baker-Laporte FAIA,BBP<br>
Econest Architecture Inc.<br>
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<br></blockquote></div><br><br clear="all"><div><br></div>-- <br><div dir="rtl"><font color="#009900">ויטל-רוזנברג אדריכלים<br>תכנון ויעוץ לבניה ירוקה</font><br><b><u><font color="#009900"><a href="http://www.vital-baron.com/" target="_blank">www.vital-baron.com</a></font></u></b><div>
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