[Greenbuilding] PU & adobe

[William Updike]

BioBased (soy-based) has a closed-cell spray foam now
with a high R-value (6.3/in).  Perhaps this would be
worth checking with them about as well:

www.biobased.net

Cheers,
Bill

--- "Vadurro, Rob, EMNRD" <rob.vadurro at state.nm.us>
wrote:

> Here in New Mexico, it has been quite common to
> spray polyurethane foam
> over adobe. It is one of the few ways to insulate
> adobe, withou
> furring, etc. PU foam is vapor permeable and
> waterproof, good
> characteristics to have, and it seems to stick to
> adobe (and everything
> else!) just fine. I've not heard of any long term
> problems, but there
> may be some that I've not heard of. Although it's
> petroleum based, the
> long term energy savings seems worth it.
> 
> -Rob Vadurro AIA
> 
> 
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