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Chart for when to earth bag vs. cob vs. wofati vs. straw?

Posts: 1507
Location: Massachusetts, 6b, suburban, nearish coast, 50x50, full sun, 40" year-round even distribution
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Thanks Kelly for sharing on the forum.  I'm sorry I'm not more knowledgeable about earth bag, but may be interested down the road.  But I do have one question, and if it's already been answered maybe this could be merged with another thread.

It would be awesome to have a chart for when to earth bag vs. cob vs. wofati vs. straw.  Climate, availability of open space vs. no open space (trees), etc.  

Does anyone have such a chart, or have it in your head and could spit it out easily?

Also, longevity of each building method from real-world examples, pitfalls of each, and money costs.

I'm asking for a lot here but it could help lots of people get a sense of "should I be researching this one more in my situation or is it better to put my energy into researching another of the options?"  Rather than just "OMG, permaculture!" which is great for a while but, you know, we can do even better.


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Location: nevada zone7
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I too would benefit from this info as well.
book marking
Posts: 1437
Location: Bendigo , Australia
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I am not one to speak ill of any ideas often, BUT
one of the issues with choosing the type of instruction is simply a preconceived idea of the type of structure people want.
- site conditions w.r to the sun
- terrian
- climatic conditions of the area
- on site materials, suitable soil for cob, mud bricks, stones, rocks or timber
- availability locally of materials
- availability of skills locally or yourself.
- water supply. water is essential to have for earth building
- design of structure, sometimes the design excludes particular materials.

I always ask people to think about what style, type and size of house they have in mind.
Then encourage them to research in some way examples of what they have in mind, and others they may reject. This helps formulate some concepts.
Then think about how or whom is carrying out the major proportion of the work.
By then things seem to fall into place.
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