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Modern Seaweed Houses — 5 Comments

  1. Why bother processing it into boards for an earthbag house? Why not just put it into the same kind of small tubes used for a thin wall and wrap it around you’re structure, or used the divided bags/tubes. If you’re trying to green an otherwise conventional construction I can see it, but if you’re building with any of the alternative methods recommended on this site, you might as well go whole hog.

  2. Thanks Owen for the blog and YES this seems to be a far better alternative to foam board. I wonder how this could be used in the earthbag building process? Any idea?

    • Like I’ve said before on the blog, many modern adobe houses have a layer of foam board on the exterior and plaster. The same option exists for earthbag houses. Seaweed board would make the process greener.

  3. This is interesting. I wonder what other countries might be using this? I do question about it not burning when it’s dry but, honestly I have never tried to but, have complained about it on the beaches. Maybe not so much now.

    • The 2nd article says Mediterranean countries are harvesting the seaweed and sending it to a factory in Germany who then process it into finished insulation. They’re planning to also make rigid panels such as cellulose board to increase sales. Things are always slow at first, but if this works than it will catch on and spread elsewhere. So I consider this very good news for the natural building movement. I’ve always hated using foam board insulation. Soon we’ll be able to buy seaweed board with 150 year life expectancy unless a competing technology comes to market sooner.

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