[Strawbale] Fwd: Futility of quantifying properties of natural materials (was Re: compressing or not
sebastien.hubert at mc2000.be
Thu Mar 20 07:24:16 CET 2014
Completly agree with you Dave,
Clayplaster protects again fire AND is the airtightness of the walls.
Certainly with inside insulation. I would say that a clayplaster is
probably too open (regarding vapor) to act as a good vapor barier in
this case. Perhaps lime would be better ?
On 19/03/14 19:34, Dave Howorth wrote:
> On Tue, 2014-03-18 at 18:17 -0700, Menno Houtstra wrote:
>> although i must say that in the cases that i described it is about a
>> compressed strawbale wall inside a concrete building.
> That statement rings alarm bells for me with regard to possible
> condensation problems and consequent rot. Whether there could be
> problems depends on a lot of factors, but if you're in a northern
> European climate and the bales are up against concrete external walls,
> there may well be a problem.
> You might also want to read up about the chimney effect if unplastered
> bales are stacked alongside some other structure.
> You may well have already considered these possibilities but I thought
> it safest to point them out.
> Cheers, Dave
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