"Melissa" wrote in message

I recently saw a home improvement show that demonstrated a spray on
insulation. It was made of soy, and it expanded after being sprayed on
the inside of the outer wall. It was then cut flush with the studs before
the drywall was put in place.


Start here http://www.unitedsoybean.org/lib_fs_...id=10&type=one
http://www.unitedsoybean.org/newuses...es_Soyoyl.html