[Cob] Insulation Idea

[Charity Davis-Custer]

Thanks for the replies.

We are in Michigan in the suburbs on the outskirts of
Detroit (not to be confused with the suburbs of the
suburbs of the sprawl).  We are zone 5 or 6 (depending
on who you ask) and we suffer from the lake effect. 
We get less snow than northern Michigan but we still
deal with our share.  I should have been more explicit
I think though.   The goal for the greenhouse aspect
is really to facilitate seed starting in the spring (a
batch indoors move them to the greenhouse and start
the next batch) and extend growing time into late
fall.  I will not be heating the greenhouse with
anything but active/passive solar design and animal
warmth.  If by some fluke I'm able to keep a
reasonable amount of heat then I will use the space in
the winter to grow cold weather crops.  In the summer
the space will be just used as a shed. The bunnies
have an outdoor hutch so they won't be baking in the
shed.

I considered strawbale but I can't get straw for free.
 It's about a hour and a half drive to my nearest
source for straw.  Now I know I'll need straw for cob
but that's only one small truckload for what I'll
need.  (mind you I have to borrow the truck too) 
Waste paper I can scavenge locally.  I have family in
the construction  biz so I can get builders lime cheap
and delivered to my door.

And to be totally honest I'm just itching to build
with cob.  

I was also considering only building my walls about 1'
to 1' 1/2 thick.  Is this too thin?  Again it's the
space issue.  

Thanks for the suggestions.  I really want to do cob,
I just have to figure out what's possible for my
situation.

Charity