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Max,<br>
As for 'dangerous' builders and the dangerous building practices
that they broadcast : I'm glad they have the freedom to do so. And I
feel it is simply up to those who have a 'better' understanding of
building science, who care and can afford the time it takes of their
personal life, to share as much and as well as they can so that
those who care to make a well informed choice can do so. I'm glad
you and many others do so. For the rest it just takes faith.... and
convincing arguments.<br>
<br>
<br>
<br>
I agree with the long and well constructed contributions sent by
several participants on the list. And I'll probably repeat until the
end of my days: Test before going 'all the way' and if you do not
have the possibilty to do so, don't expériment too much if you don't
want your building to be an experiment.<br>
<br>
My point of view: Plaster on bales rule, very wide overhangs
(verandas) are excelent and well constructed vented rainscreens are
the best thing for exposed façades. 'Clean OSB' is not the end of
the world. If the bales are places thightly against them the
insulation value is probably not so bad (Herbert, give us your
numbers ;-) and in a 'normal' situation we don't care if the walls
smolder after 15 minutes of fire on the inside of a house. You
should be outside by then as everyting else that is burnin inside
(couch, TV, curtains etc.) is turning the place into a humongous
barbeque. As for the mold on OSB, I have no opinion that I dare
share.<br>
<br>
Finally, like one of my workshop participants said : "you cannot
have : Cheap, quick and quality". You can only have 2. True, with a
lot of experimenting or good study you can build, cheap quality
buildings fast, but that amount of preparation takes a long time for
new time desigers/builders. I strongly suggest all those who do not
want to spent their life experimenting on SB to invest (at least) in
good reading material and to participate in a few workshops. Then
build and finish someting small (say 30M²) and ONLY THEN start
drawing your dream home. <br>
<br>
Good luck and welcome to the very complex and dangerous world of
building. It's a facinating world...<br>
<br>
André <br>
France <br>
<a class="moz-txt-link-abbreviated" href="http://www.lamaisonenpaille.com">www.lamaisonenpaille.com</a><br>
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Le 06/12/2010 23:18, asbn a écrit :
<blockquote cite="mid:C9231FBD.10199%25asbn@baubiologie..."
type="cite">
<blockquote type="cite">
<pre wrap="">I just wanted to mention, that OSB is not a healthy building material.
As far as i know they use Isocyanate clue to produce them.
And Isocyanate is not healthy at all!
Cheers Kurt
</pre>
</blockquote>
<pre wrap="">
This is why we use Egger Eurostrand OSB Top4 boards, which are glued with PU
(Polyurethan) and are Formaldehyde free. In Austria we have a huge (free)
database for ecological products, the link: <a class="moz-txt-link-freetext" href="http://www.baubook.at/">http://www.baubook.at/</a>
We check all the materials we use in this database for its ecological
impact...
I know, there are better ecological and baubiological products (like
strawbales, earthplaster, woodwool, softwood, Agepan/dp50-boards, ...).
When you are a carpenter and build prefab houses you have to find certified
CE-products (this is European building law - which is not yet in every
European country national law) with the best possible ecological AND
structural quality.
In a wood-area like Austria you will tend to wood products, in areas with
less wood and forests you will build more loadbearing structures.
There is a difference in the building tradition and building officials
accept loadbearing and directly plastered strawbale walls in some countries
and in some others (like ours) not.
The reason is a mixture of building tradition and experience and the
influence of building lobbies, fighting for their products.
When I build my own strawbale house (especially when it is a renovation like
my old converted barn) I'm not bound to such products.
But as a national strawbale network I'd like as many strawbale houses as
possible in Austria (and Europe), and this means also to work with
professional carpenters and build with straw in a sometimes more complicated
way as maybe needed. But they have their liability...
Mit lieben Grüßen
Herbert Gruber
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