Cob: Paint on cob

Thu Mar 6 11:19:36 CST 2003

Point of clarification
. (at least I hope)

Natural paints and tinted renders tend to act more like stains allowing for
cob (or strawbale) to dry out properly. Modern latex and oil based paints
however act as sealants on the wall and can lead to ugly problems on cob
walls.

I am assuming that this later paint is what was being referred to (since
that was the type being discussed when this thread started). I just didnt
want folks to be scared off of the natural coloring options available to
them for their structures.

If however you were speaking on a more global anti-paint platform, please
explain. It would be the first I heard negative comments about the natural
paints.

Joe

-----Original Message-----
From: owner-coblist at deatech.com [mailto:owner-coblist at deatech.com]On Behalf
Of Yun Que
Sent: Thursday, March 06, 2003 3:54 PM
To: coblist at deatech.com
Subject: Re: Cob: Paint on cob

Cat here,  Yes on the no paint thing!  Natural wood, earth, stone holds a
quality that is easy on the eye and for those of us who do not enjoy
cleaning too often these materials patina great!!!!
for the good of all C
>From: Darel Henman
>Reply-To: Darel Henman
>To: Kim West
>CC: Cob List
>Subject: Re: Cob: Paint on cob
>Date: Thu, 06 Mar 2003 14:10:28 +0900
>
>Kim,
> don't put paint on cob. Too many people think a cob wall will
>disintergrate at the first rain and this is untrue. I have seen hundred
>year old daub buildings with NO lime plaster, just the rough daub still
>in pretty good condition. It had a proper roof. It wasn't but could
>be replastered with a clay straw plaster if wanted every so often. A
>lime and sand or lime and fibre would probably help it last a bit
>longer. A lime and clay soil with maybe some sand and soft fibre would
>work as well. But the cute little daub building I saw was still
>functional as it was a hundred years ago as a little shed. I've seen
>houses about two hundred years old as well with just the daub/cob
>finish. Cob once dried and cured is very strong.
>
> Of course, one must consider your area and the quality of your mix.
>
> Not related, but in general paint sucks. Leave things their natural
>color. If you have a mental thing about painting everything, use a
>natural oil or wax for wood.
>
>Darel
>
> > Kim West wrote:
> >
> > I read where someone here used latex paint on cob and it peeled off. I
> > was wondering if anyone has used a store bought water based/flat
> > paint, and if so, how did it do on the cob? Thanks.
> >
> > Kim
>

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<div class=Section1>

Point of
clarification…. (at least I hope)<o:p></o:p>

<p class=MsoNormal><span class=EmailStyle19><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:Arial'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></font></span></p>

Natural
paints and tinted renders tend to act more like stains allowing for cob (or
strawbale) to dry out properly. Modern latex and oil based paints however act
as sealants on the wall and can lead to ugly problems on cob walls. <o:p></o:p>

<p class=MsoNormal><span class=EmailStyle19><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:Arial'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></font></span></p>

I am
assuming that this later paint is what was being referred to (since that was
the type being discussed when this thread started). I just didn’t want folks to
be scared off of the natural coloring options available to them for their
structures. <o:p></o:p>

<p class=MsoNormal><span class=EmailStyle19><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:Arial'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></font></span></p>

If however
you were speaking on a more global “anti-paint” platform, please explain. It
would be the first I heard negative comments about the natural paints.<o:p></o:p>

<p class=MsoNormal><span class=EmailStyle19><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:Arial'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></font></span></p>

<p class=MsoNormal><span class=EmailStyle19><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:Arial'>Joe<o:p></o:p></span></font></span></p>

<p class=MsoNormal><span class=EmailStyle19><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:Arial'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></font></span></p>

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<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma;color:black'>-----Original
Message-----<br>
<b><span style='font-weight:bold'>From:</span></b> owner-coblist at deatech.com
[mailto:owner-coblist at deatech.com]<b><span style='font-weight:bold'>On Behalf
Of </span></b>Yun Que<br>
<b><span style='font-weight:bold'>Sent:</span></b> Thursday, March 06, 2003
3:54 PM<br>
<b><span style='font-weight:bold'>To:</span></b> coblist at deatech.com<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: Cob: Paint on cob</span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></font></p>

<p style='margin-left:.5in'><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt;color:black'>Cat here,  Yes on the no paint
thing!  Natural wood, earth, stone holds a quality that is easy on the eye
and for those of us who do not enjoy cleaning too often these materials patina
great!!!!</span></font><font color=black><span style='color:black;mso-color-alt:
windowtext'><o:p></o:p></span></font></p>

<p style='margin-bottom:12.0pt;margin-left:.5in'><em><i><font size=3
color=black face="Times New Roman"><span style='font-size:12.0pt;color:black'>for
the good of all </span></font></i></em><font color=black><span
style='color:black'>C</span></font><font color=black><span style='color:black;
mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'>>From:
Darel Henman <HENMAN at IT.TO-BE.CO.JP></span></font><font color=black><span
style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'>>Reply-To:
Darel Henman <HENMAN at IT.TO-BE.CO.JP></span></font><font color=black><span
style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'>>To: Kim
West <KWEST at ARKANSAS.NET></span></font><font color=black><span
style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'>>CC: Cob
List <COBLIST at DEATECH.COM></span></font><font color=black><span
style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'>>Subject:
Re: Cob: Paint on cob </span></font><font color=black><span style='color:black;
mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'>>Date:
Thu, 06 Mar 2003 14:10:28 +0900 </span></font><font color=black><span
style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'>> </span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'>>Kim, </span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

> don't
put paint on cob. Too many people think a cob wall will <o:p></o:p>

>disintergrate
at the first rain and this is untrue. I have seen hundred <o:p></o:p>

<p class=MsoNormal style='margin-left:.5in'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'>>year old
daub buildings with NO lime plaster, just the rough daub still </span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

>in pretty
good condition. It had a proper roof. It wasn't but could <o:p></o:p>

>be
replastered with a clay straw plaster if wanted every so often. A <o:p></o:p>

<p class=MsoNormal style='margin-left:.5in'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'>>lime and
sand or lime and fibre would probably help it last a bit </span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

>longer. A
lime and clay soil with maybe some sand and soft fibre would <o:p></o:p>

>work as
well. But the cute little daub building I saw was still <o:p></o:p>

>functional
as it was a hundred years ago as a little shed. I've seen <o:p></o:p>

<p class=MsoNormal style='margin-left:.5in'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'>>houses
about two hundred years old as well with just the daub/cob </span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

>finish.
Cob once dried and cured is very strong. <o:p></o:p>

<p class=MsoNormal style='margin-left:.5in'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'>> </span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

> Of
course, one must consider your area and the quality of your mix. <o:p></o:p>

<p class=MsoNormal style='margin-left:.5in'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'>> </span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

> Not
related, but in general paint sucks. Leave things their natural <o:p></o:p>

>color. If
you have a mental thing about painting everything, use a <o:p></o:p>

>natural
oil or wax for wood. <o:p></o:p>

<p class=MsoNormal style='margin-left:.5in'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'>> </span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'>>Darel </span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'>> </span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'>> > Kim
West wrote: </span></font><font color=black><span style='color:black;
mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'>> > </span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

> > I
read where someone here used latex paint on cob and it peeled off. I <o:p></o:p>

<p class=MsoNormal style='margin-left:.5in'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'>> > was
wondering if anyone has used a store bought water based/flat </span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

> >
paint, and if so, how did it do on the cob? Thanks. <o:p></o:p>

<p class=MsoNormal style='margin-left:.5in'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'>> > </span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'>> > Kim
</span></font><font color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'>> </span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'><br
clear=all style='mso-special-character:line-break'>
</span></font><font color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

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color:black'>

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