[Cob] Janet-windows, doors, thick walls
Shody Ryon
qi4u at yahoo.com
Thu Dec 18 22:40:49 CST 2008
> you'll never get that mound of dirt warm.
> Plus, your guy is
> right, that's trucks and trucks of material.
>
>
>
> Have you explored straw bale?
>
> Tys
I was thinking the same thing; that it would
be hard to heat 5' think walls, but wouldn't
it depend on if it were insulated "properly"
exterior to the cob?
Catch 22; proper insulation (1' cellulose @
R 3.8/inch = R 45.6 or whatever R value a bale
would be) would negate the need for 5' thick
cob, but if 5' think walls if used inside a
complete high R value envelope which would
include the floor (more than R 15 if there
were a slab) and the ceiling and the
foundation, walls if any.
It would help if condensation/dew point
interior to the wall and vapor barrier issues
were be understood.
Anyhow, with super insulation the cob should
take on the avarage temp of the interior of
the house, however the 5' thick walls would
not be required.
The cave issue is a big issue. Most designers
and even feng shui practitioners (geomancy is
incorrect)
http://en.wikipedia.org/wiki/Geomancy
care a great deal about the quality of light
inside a house, and 5' think walls not only
cut down on the amount of light that enters
the house but also greatly limit the view out
the window. Think of placing a window shaped
5' long tube sticking straight out and imagine
the view out and the reduced light coming in.
You and I agree, are their other opinions?
Hugs,
Shody