How to Build Large Earthbag Domes

Large earthbag dome insulated with bags of scoria/lava rock.
Large earthbag dome insulated with bags of scoria/lava rock.

Question: “I was wondering if there is a limit to the size of diameter an earthbag dome can have. I am wanting to have a dome with more than 800 sq ft. I would like it to be a dome because I do not want the hassle of constructing a roof, and I’m a simple person so I am only wanting to construct one dome instead of multiple ones. Any information about this would be helpful, thank you!” Tyler

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Earthbag Sea Front Home on Private Beach for Sale

Earthbag sea front roundhouse for sale in Belize
Earthbag sea front roundhouse for sale in Belize

Asking Price: $198,000 USD

• Beautiful Sea Front Home on 1/2 Acre lot, very private Beach
• Private Road
• Walk a 150 Feet off the Front Porch and you’re relaxing in the water.
• Deck around entire home and includes both upper and lower screen rooms.

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Open Source Disaster Resistant Earthbag Homes

Open source plans for hurricane resistant homes
Open source plans for hurricane resistant homes

Announcing a new open source project at Natural Building Blog with free plans available after completion of design. Please submit your suggestions below for an ultra low-cost, disaster resistant earthbag home for coastal areas that are vulnerable to hurricanes/cyclones and flooding.

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Update on Confined Earthbag Building

Small earthbags are compacted with a plate compactor.
Small earthbags are compacted with a plate compactor.

I love hearing about innovative natural building projects. Ed, a long time reader, sent me an update on his earthbag home in Ecuador. Ed is using confined earthbags that sit within a reinforced concrete frame. This is a good method for those who need to meet building code and for areas that are vulnerable to hurricanes and earthquakes.

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First Code Approved Scoria Bag Pole House

Code approved scoria bag pole house in New Zealand
Code approved scoria bag pole house in New Zealand

“About two years ago, my family purchased 11 acres in the north of New Zealand with the hopes of creating a family farm out of the empty paddocks. With a good pioneering spirit, we moved onto the land and lived in camper trailers for the first winter. It quickly became clear that we needed some better shelter, so we decided to build a cottage.

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