<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">I our old tests in Austria by Technical University of Vienna/GrAT the minimum weight for ideal thermal performance is 85kg/m3<div>Since 2008 we have a new buildings-strawbale, which was tested <span class="Apple-style-span" style="color: rgb(63, 63, 63); font-family: Verdana, Arial; font-size: 13px; line-height: 18px; -webkit-border-horizontal-spacing: 2px; -webkit-border-vertical-spacing: 2px; ">ETA-10/0032 </span>with a minimum weight of 95kg/m3<br><div>Germany starts with a minimum weight of 90kg/m3<br><div><br></div><div>here are the links to our tests in Austria:<br><div><a href="http://www.baubiologie.at/download/zertifikate/lambda.html">Wärmedämmleitwert-Überprüfung</a> (first test 2002)</div><div><a href="http://www.waldland.at/de/waldviertler_flachshaus/strohdaemmung/produktspezifikation/">http://www.waldland.at/de/waldviertler_flachshaus/strohdaemmung/produktspezifikation/</a></div><div><br></div><div>tests in Germany by FASBA:</div><div><a href="http://www.baubiologie.at/download/Pb-lambda1.pdf">http://www.baubiologie.at/download/Pb-lambda1.pdf</a></div><div><br></div><div>I all the tests we used wheat-straw</div><div><br></div><div>We use the certified (building)bales for non-loadbearing walls as well as for (a few) loadbearing walls</div><div><br><div> <div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><div>regards</div><div>Herbert Gruber</div><div>-----------------</div><div>asbn - austrian strawbale network</div><div>3720 Ravelsbach, Baierdorf 6</div><div>Tel. 02958-83640</div><div><a href="mailto:asbn@baubiologie.at">asbn@baubiologie.at</a></div><div><a href="http://www.baubiologie.at">www.baubiologie.at</a></div></div><div><br></div></div><br class="Apple-interchange-newline"> </div><br><div><div>Am 17.02.2013 um 18:00 schrieb martin hammer:</div><br class="Apple-interchange-newline"><blockquote type="cite"> <title>Bale density</title> <div> <font size="2"><font face="Arial"><span style="font-size:9pt">Hello all,<br> <br> Anyone care to weigh in (pun intended) on the minimum bale density for straw bale walls?<br> <br> This is in the context of the most recent straw bale code proposal for the International Residential Code.<br> <br> Things to consider:<br> <br> </span></font></font><ul><li><font size="2"><font face="Arial"><span style="font-size:9pt">I’m interested in the minimum acceptable density, not the optimum </span></font></font></li><li><font size="2"><font face="Arial"><span style="font-size:9pt">Densities from tested assemblies are especially useful (especially structural tests) (please mention the test if this is the case) </span></font></font></li><li><font size="2"><font face="Arial"><span style="font-size:9pt">Include type of straw with your number(s) if relevant </span></font></font></li><li><font size="2"><font face="Arial"><span style="font-size:9pt">Dry densities are preferred (bale weight / bale volume, minus % moisture content), but wet densities are ok if you also give the approximate moisture content. </span></font></font></li><li><font size="2"><font face="Arial"><span style="font-size:9pt">Lb/sq.ft. or kg/m3 are ok. </span></font></font></li><li><font size="2"><font face="Arial"><span style="font-size:9pt">Whether the minimum acceptable density should be different for structural (load-bearing or shear wall) and nonload-bearing applications<br> </span></font></font></li></ul><font size="2"><font face="Arial"><span style="font-size:9pt"><br> (Note: I’m aware that cutting the bale ties before plastering is a practice some employ, at least for nonload-bearing walls.)<br> <br> Thanks!<br> <br> Martin Hammer<br> </span></font></font> </div> _______________________________________________<br>GSBN mailing list<br><a href="mailto:GSBN@sustainablesources.com">GSBN@sustainablesources.com</a><br>http://sustainablesources.com/mailman/listinfo.cgi/GSBN<br></blockquote></div><br></div></div></div></div></body></html>