[Strawbale] Strawbale roof insulation

[Barbara Jones]

On the subject of sheeps wool insulation, I've been doing some research
because I wanted to know why it was being produced commercially at such a
cost when we could get fleeces so cheaply. The main reason I keep coming
back to is that untreated sheeps wool is completely tasty to moths. I have
spoken to several people now who have used it and say the moths just
completely eat it up, even if it's in a sealed space. The main cost during
processing is in blending in an anti-moth mineral and making it stay in the
wool and not leach out over time. So, I would say to beware of the Moth!
Best wishes
Barbara

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----- Original Message -----
From: Coralie & Andre de Bouter <m.ep at laposte...>
To: <strawbale at amper....muni.cz>
Sent: Wednesday, August 28, 2002 3:56 PM
Subject: Re: [Strawbale] Strawbale roof insulation


> I did a little insulation like that. But would not do it again.
> Fire and rodents are a risk. Borax would work for both, but impregnating
the
> straw would mean moisture. (We just added it loose on the straw)
> Besides, how much of insulation would 17 cm of 'loose' straw really give.
> Not much I think.
>
> Why not go for sheeps wool. Unwashed, so the oils protrect against mites.
> Cheap, ecological, withstands moisture and fire.
> 15 cm gives insulation equal to a SB.
>
> They say that the smell goes away after some time. We will installed the
> wool that we collected this year during the winter.
>
> Bye,
> Andre
>
> >
> > Does someone have experience with using loose straw as roof insulation
for
> > an inclinated roof. The thickness of the roof is 17cm.  I think
personally
> > that it is too dangerous (fire) or does their exist some kind of natural
> > treatment for the straw.
> > Herwig Van Soom
> >
> >
> >
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