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Insulated Earthbag/Geotextile Basement Walls — 13 Comments

  1. Was wondering the difference between straight and leaning outward walls?… We r going to do a earthbag house and covering it up with soil, like a Hobbit house ..

    • Basement walls that lean out are somewhat more stable than vertical ones, but it depends on the engineering whether it might be necessary.

  2. what are the standard specification of geo textile bags used for this basement system. Can these geotextiles also be used for the main building structures as well.

    • You can use regular polypropylene earthbags or raschel mesh tubes or bags (often called hyperadobe) for the walls. In addition to the article, our blog has everything you need to know. Search for terms such as ‘raschel mesh’ for example. I don’t have the geotextile details, but you could explain what you’re doing to any geotextile supplier and I’m sure they can provide what’s needed. It’s the same material used to build retaining walls for decades.

  3. This blog is very informative and it really gives me the information that I am looking for. Thanks a lot admin.

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    • They wouldn’t have to be since they’re underground. They would only be exposed to UV for a short time during construction. For very large jobs, you can order UV resistant materials or coat the bags as you go with cheap recycled latex paint.

  6. The strapping is a little difficult to see, sorry. It goes under about 5 courses of 22″ earthbags. Regular nylon strapping used to secure loads on pallets works great.

    Not shown: 2×4 plate pinned to lower bags. Build the floor frame on the plate.

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