I strongly recommend a 2:1 ratio, not 1:1. A 1:1 mix is very rich and not necessary in most cases. At all costs, avoid using cement as it interrupts the cure of the lime and actually makes the plaster more brittle and likely to crack. It also reduces the vapor permeance of the plaster.<br>
<br>A standard straw bale wall lime plaster should be a 2:1 scratch coat, 2.5:1 brown coat, and a 3:1 finish coat. You can choose to add some chopped straw, horse hair, or other binder as well, but it is not necessary.<br>
<br>Andrew<br><br><div class="gmail_quote">2011/8/11 Enn Veesalu <span dir="ltr"><<a href="mailto:enn.veesalu@hariduskeskus...">enn.veesalu@hariduskeskus.ee</a>></span><br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
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<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; color: navy;">I am agree, that somebody would be disagree.
In this case possible to use original recipe (1 <b><span style="font-weight: bold;">:</span></b> 1) and it’s OK!<u></u><u></u></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; color: navy;"><u></u> <u></u></span></font></p>
<p class="MsoNormal"><u></u><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; color: navy;">Enn Veesalu</span></font><u></u><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; color: navy;"><u></u><u></u></span></font></p>
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<p class="MsoNormal"><b><font color="black" face="Tahoma" size="2"><span style="font-size: 10pt; font-family: Tahoma; color: windowtext; font-weight: bold;" lang="ET">From:</span></font></b><font color="black" face="Tahoma" size="2"><span style="font-size: 10pt; font-family: Tahoma; color: windowtext;" lang="ET"> <a href="mailto:strawbale-bounces@amper.ped.muni.cz" target="_blank">strawbale-bounces@amper....muni.cz</a>
[mailto:<a href="mailto:strawbale-bounces@amper....muni.cz" target="_blank">strawbale-bounces@amper....muni.cz</a>] <b><span style="font-weight: bold;">On
Behalf Of </span></b>Sport Hotel, Jure Pozar<br>
<b><span style="font-weight: bold;">Sent:</span></b> Thursday, August 11, 2011
9:21 AM<br>
<b><span style="font-weight: bold;">To:</span></b> European strawbale building
discussions<br>
<b><span style="font-weight: bold;">Subject:</span></b> Re: [Strawbale] Plaster
content</span></font><font color="black"><span style="color: windowtext;" lang="ET"><u></u><u></u></span></font></p>
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<p class="MsoNormal"><font color="black" face="Times New Roman" size="3"><span style="font-size: 12pt;">Thats what I heard that people do this days: add
little cement for strenghtening, but lots of people would probably disagree
with this.<br>
<br>
Jure<br>
<br>
Dne 11.8.2011 6:00, piše <u></u>Enn Veesalu<u></u>:
<u></u><u></u></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; color: navy;"><u></u>Hello Tomas!<u></u><u></u></span></font><u></u><u></u></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; color: navy;"><u></u> <u></u></span></font><u></u><u></u></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; color: navy;">Maybe too late for you, but you asked about
recipe for lime plaster outside. <u></u><u></u></span></font><u></u><u></u></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; color: navy;">I am not sure for strawbale walls, but for
stone walls (I hope it’s the same) restorers use ratio 1 : 1, what mean
that 50% sand and 50% lime. <u></u><u></u></span></font><u></u><u></u></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; color: navy;">Now days surrounding air have a lot
pollutants and pure lime plaster is not so strong enough for active components
in outside. In this case is permissible today to add very small amount cement
too; for strengthening plaster.<u></u><u></u></span></font><u></u><u></u></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; color: navy;"><u></u> <u></u></span></font><u></u><u></u></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; color: navy;">Regards,<u></u><u></u></span></font><u></u><u></u></p>
<p class="MsoNormal"><u></u><u></u><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; color: navy;">Enn Veesalu</span></font><u></u><u></u><u></u><u></u></p>
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<p class="MsoNormal"><b><font color="black" face="Tahoma" size="2"><span style="font-size: 10pt; font-family: Tahoma; font-weight: bold;" lang="ET">From:</span></font></b><font face="Tahoma" size="2"><span style="font-size: 10pt; font-family: Tahoma;" lang="ET"> <a href="mailto:strawbale-bounces@amper....muni.cz" target="_blank">strawbale-bounces@amper.ped.muni.cz</a>
[<a href="mailto:strawbale-bounces@amper....muni.cz" target="_blank">mailto:strawbale-bounces@amper....muni.cz</a>]
<b><span style="font-weight: bold;">On Behalf Of </span></b>Thomas Simkevicius<br>
<b><span style="font-weight: bold;">Sent:</span></b> Wednesday, July 20, 2011
12:01 AM<br>
<b><span style="font-weight: bold;">To:</span></b> <a href="mailto:strawbale@amper....muni.cz" target="_blank">strawbale@amper....muni.cz</a><br>
<b><span style="font-weight: bold;">Subject:</span></b> [Strawbale] Plaster
content</span></font><u></u><u></u></p>
</div>
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<p class="MsoNormal"><font color="black" face="Times New Roman" size="3"><span style="font-size: 12pt;"><u></u> <u></u><u></u><u></u></span></font></p>
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<p class="MsoNormal"><font color="black" face="Times New Roman" size="3"><span style="font-size: 12pt;">Hello,<u></u><u></u><u></u><u></u></span></font></p>
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<p class="MsoNormal"><font color="black" face="Times New Roman" size="3"><span style="font-size: 12pt;">Last week put some scratch coat onto my strawbale
garage. The render mix that I have used for the inside was 4
parts coarse sand to 1 part pure clay to 0,5 part chopped straw.
With this mix everything went perfect, no cracks appeared when the
plaster dried.<u></u><u></u><u></u><u></u></span></font></p>
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<p class="MsoNormal"><font color="black" face="Times New Roman" size="3"><span style="font-size: 12pt;"> For the outside scratch coat I used the
same ratio plus added hydrated lime in powder to the mix. The ratio of the
lime I tried to keep to around 5% of the mix. The outside plaster cracked a
lot. I'm sure that the reason for the cracks was lime. There was little
area outside where I did not put lime in the plaster, and in this area no
cracks appeared when the plaster dried. What ratio of lime should I keep in the
mix for the outside?<u></u><u></u><u></u><u></u></span></font></p>
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<p class="MsoNormal"><font color="black" face="Times New Roman" size="3"><span style="font-size: 12pt;">Regards,<u></u><u></u><u></u><u></u></span></font></p>
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<p class="MsoNormal"><font color="black" face="Times New Roman" size="3"><span style="font-size: 12pt;"> <u></u><u></u><u></u><u></u></span></font></p>
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<p class="MsoNormal"><font color="black" face="Times New Roman" size="3"><span style="font-size: 12pt;">Tomas<u></u><u></u><u></u><u></u></span></font></p>
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<fieldset></fieldset><u></u><u></u></span></font></p>
<pre><font color="black" face="Courier New" size="2"><span style="font-size: 10pt;">____________________________________________________<u></u><u></u></span></font></pre><pre><font color="black" face="Courier New" size="2"><span style="font-size: 10pt;"> European strawbale building discussion list<u></u><u></u></span></font></pre>
<pre><font color="black" face="Courier New" size="2"><span style="font-size: 10pt;"><u></u> <u></u></span></font></pre><pre><font color="black" face="Courier New" size="2"><span style="font-size: 10pt;">Send all messages to:<u></u><u></u></span></font></pre>
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<pre><font color="black" face="Courier New" size="2"><span style="font-size: 10pt;">Archives, subscription options, etc:<u></u><u></u></span></font></pre><pre><font color="black" face="Courier New" size="2"><span style="font-size: 10pt;"><a href="http://amper.ped.muni.cz/mailman/listinfo/strawbale" target="_blank">http://amper.ped.muni.cz/mailman/listinfo/strawbale</a><u></u><u></u></span></font></pre>
<pre><font color="black" face="Courier New" size="2"><span style="font-size: 10pt;">____________________________________________________<u></u><u></u></span></font></pre><pre><font color="black" face="Courier New" size="2"><span style="font-size: 10pt;"><u></u> <u></u></span></font></pre>
<pre><font color="black" face="Courier New" size="2"><span style="font-size: 10pt;"><u></u> <u></u></span></font></pre>
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<u></u><br>
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<pre><font color="black" face="Courier New" size="2"><span style="font-size: 10pt;">-- <u></u><u></u></span></font></pre><pre><font color="black" face="Courier New" size="2"><span style="font-size: 10pt;"><u></u> <u></u></span></font></pre>
<pre><font color="black" face="Courier New" size="2"><span style="font-size: 10pt;"><u></u> <u></u></span></font></pre><pre><font color="black" face="Courier New" size="2"><span style="font-size: 10pt;"><u></u> <u></u></span></font></pre>
<pre><font color="black" face="Courier New" size="2"><span style="font-size: 10pt;">Jure Požar, dipl.org.tur./ general manager<u></u><u></u></span></font></pre><pre><font color="black" face="Courier New" size="2"><span style="font-size: 10pt;"><u></u> <u></u></span></font></pre>
<pre><font color="black" face="Courier New" size="2"><span style="font-size: 10pt;">HOTEL SPORT & MTB park Notranjska<u></u><u></u></span></font></pre><pre><font color="black" face="Courier New" size="2"><span style="font-size: 10pt;">Kolodvorska c. 1, Postojna<u></u><u></u></span></font></pre>
<pre><u></u><u></u><font color="black" face="Courier New" size="2"><span style="font-size: 10pt;">Slovenia</span></font><u></u><u></u> <u></u><u></u></pre><pre><font color="black" face="Courier New" size="2"><span style="font-size: 10pt;">Tel.: <a href="tel:%2B386%205%20720%2022%2044" value="+38657202244" target="_blank">+386 5 720 22 44</a><u></u><u></u></span></font></pre>
<pre><font color="black" face="Courier New" size="2"><span style="font-size: 10pt;">Fax: <a href="tel:%2B386%205%20720%2022%2040" value="+38657202240" target="_blank">+386 5 720 22 40</a><u></u><u></u></span></font></pre>
<pre><u></u><u></u><font color="black" face="Courier New" size="2"><span style="font-size: 10pt;">Mobile</span></font><u></u><u></u>: <a href="tel:%2B%20386%2051%20630%20575" value="+38651630575" target="_blank">+ 386 51 630 575</a><u></u><u></u></pre>
<pre><font color="black" face="Courier New" size="2"><span style="font-size: 10pt;"><a href="http://www.sport-hotel.si" target="_blank">www.sport-hotel.si</a><u></u><u></u></span></font></pre><pre><font color="black" face="Courier New" size="2"><span style="font-size: 10pt;">e-mail: <a href="mailto:jure@sport-hotel..." target="_blank">jure@sport-hotel.si</a><u></u><u></u></span></font></pre>
<pre><font color="black" face="Courier New" size="2"><span style="font-size: 10pt;"><a href="http://www.dos-extreme.si" target="_blank">www.dos-extreme.si</a><u></u><u></u></span></font></pre><pre><font color="black" face="Courier New" size="2"><span style="font-size: 10pt;">skype: jure.pozar <u></u><u></u></span></font></pre>
<pre><font color="black" face="Courier New" size="2"><span style="font-size: 10pt;"><u></u> <u></u></span></font></pre><pre><font color="black" face="Courier New" size="2"><span style="font-size: 10pt;">Bodi resnicoljuben: nikoli se ne pretvarjaj. Resnica vedno zmaga<u></u><u></u></span></font></pre>
<pre><font color="black" face="Courier New" size="2"><span style="font-size: 10pt;">Be truthful: never pretend. The truth always wins<u></u><u></u></span></font></pre><pre><font color="black" face="Courier New" size="2"><span style="font-size: 10pt;"><u></u> <u></u></span></font></pre>
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