[Cob] Re: cob stoves & light straw

[Kyle Towers]

 I think the R value of such a
> wall is as complicated to figure as that of a log wall.  That is, the
system
> seems to function much better than simply adding the elements would
produce.


    There is no reason to think that there are insulation factors for which
there is no accounting.  That is, there are no additional air gaps or such
created when applying the plasters.  The synergistic effect you experienced
was most likely the result of the higher thermal mass inside the envelope,
which dampens temperature swings.