[Cob] Phil's "lilpony"
Damon Howell
dhowell at pickensprogress.com
Fri Apr 10 09:19:42 CDT 2009
To Phil's "lilpony",
What a post, I enjoyed reading it. I do have a suggestion for the
foundation. If you go with strawbale walls, the foundation is going
to be so many yards of concrete you could build two or three normal
houses with it because it will be 18-30 inches thick. And if you do
cob I wouldn't attach it to the foundation with steel rebar because
the cob will just shrink away from it and you'd end up with a big
space in there (meaning it will do just as good to not have any
rebar). If you do a poured concrete foundation, embed large rocks
spaced about six inches apart across the top of the concrete while
it's still wet. Having the irregular top on your foundation will
prevent shifting more efficiently and provide much more surface area
for the cob to adhere to than the rebar. Try to embed the most jagged
rocks you can for a better bond.
Damon in Georgia