The material itself is a bio-composite made of the inner core of hemp plants mixed with a lime-based binder.  More info here… http://www.freedominfonet.net/hempcrete-future-construction/ Building with Hemp… Check out more about Hemp at… http://www.collective-evolution.com/2013/11/09/hemp-something-all-homes-should-be-made-of-scotland-community-begins-sustainable-housing-project/ Help Us by Donating Today… Cheers, The Foxy Lady!!!