earth

Earth Coupled Floors

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Earth coupled floors – high mass floors in contact with the soil below (slab on grade, tile, stone, CEB, earthen floors, salvaged brick) – are ideal for keeping homes cool in hot climates. They are not recommended for cold climates where underfloor insulation is best. Our earthbag roundhouse, which is in a hot climate, remains … Read more

Zero Energy Earth Home in Texas?

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Kelly and Owen, I’d like to thank you for all of the wonderful information you have offered for free to the world! I’ve been following along for about a year now and it just keeps getting better and better. I have a question about insulation and thermal mass. I live in Austin Texas and our … Read more

Gernot Minke – Building With Earth

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Special thanks to Eugene in Russia for the heads up on this great find. This earth building book by Gernot Minke’s is one of the most informative books on the subject, and now it’s available as a free download. How can you beat that? Thank you Gernot Minke for all you’ve done in support of … Read more

Adjusting the Moisture Content of Soil

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You can adjust the moisture in your soil mix. In this case we’re using road base. You can see that this is too wet. If it looks glistening with water then it’s obviously too wet. If you squeeze it and see water coming out like this then it’s too wet. So you can take your … Read more

Adjusting the Clay/Aggregate Ratio of Road Base

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All of our earthbag projects have been built using the same road base material. It has worked exceedingly well. After tamping, the earthbags are solid and turn into very hard earthen blocks. Here I am testing the hardness of bags on our roundhouse. But from time to time I would see areas with less than … Read more