Cob Buildings – A new old green technology

September 15, 2008 at 8:38 pm Leave a comment

I stumbled across an interesting new old technology today called Cob.  Once again a green technology that will have a lot of trouble here in sunny California earthquake country!

Cob as a building material is explained here: (


“What is cob?

Cob building dates back hundreds of years ago, and cob houses built over 500 years ago in Europe are still inhabited to this day. That’s pretty dang impressive considering the simple nature and composition of the material: buckets of wet clay and sand are mixed by foot (or by horse, oxen, concrete mixer, or even Bobcat excavators) and then combined with straw to produce a sticky, malleable material that can be rolled into palm-sized loaves (or “cobs”, which is where the name originated) and then laid onto a foundation and sculpted by hand to build thick and massive cob walls.”

There seems to be quite and industry springing up around this revival with many websites and books. ( Here is also the Wikipedia entry on Cob: seems also convinced: and is calling it a comeback!

There is even a multimedia experience in how some folks built a cob house and changed their life! (

Finally we have a directory of builders and related experts to help you get started building your own cob house:

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Entry filed under: Design, Environment, Technology. Tags: , , .

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