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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Ferrocement Roofed Domes for Tropical Climates

This roofed dome is designed for hot, rainy climates.
This roofed dome is designed for hot, rainy climates.

Domes are vulnerable to water damage, so what to do in rainy climates? I say add a roof. There are various roofed dome houses on our main website at EarthbagBuilding.com that you peruse here and here. Those are earthbag domes. The design I’m first presenting here is made of ferrocement. It’s just one more way to do things.

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How to Build the Strongest Buildings That Can Last Centuries

Dustin: I live in Florida where few domestic buildings last more than 50 years because of hurricanes. I explored the Monolithic Dome for quite some time. They have stood the test of direct hits by very powerful hurricanes that leveled the entire neighborhood; except the dome. The dome is the only sensible structure here. No … Read more