How to Reduce or Eliminate Tarping Earthbag Walls — 11 Comments

  1. Thinking about the paint idea.
    It seems as if the potential problem of latex paint would be that it becomes too slick for the finish plaster/stucco to stick.

    If you were to use the lower cost/lighter weight sprayer (ceiling texture bazooka thingy) and spray a mixture of paint and fine sand, would that both protect the bags and also provide enough grit for the next plaster layer to stick?
    It seems as if this would also help protect againt water too. One downside of applying an earthen slip…

    Also, if I were to test this on our under construction llama barn, and it didn’t work (made it too slick) could I just correct for that by using stucco netting under the next layer?

    I would rather avoid mistakes, but testing an idea that is correctable is okay….
    Thanks in advance for your thoughts.

    • @ Boxpert – I currently have a project (series of projects) that use a 40′ High Cube ISBU “CORE” with earthbags extending FROM them to form additional “wings”.

      I’ve found that putting Earthbags up against a container without reinforcement of that corrugated steel siding doesn’t really work in the long term.

      The methodology is pretty simple; Put all your guts (kitchen, bath, laundry facilities, HVAC) in the container and them drop it on site.

      Then, using earthbags that include perlite or scoria, start building off the sides in both directions about 16′. this creates additional “space” on both sides that is easily enclosed.

      Put SIPs (Structural Insulated Panels) on top of the entire kit and kaboodle with a waterproof membrane applied. Now add SSMR (Standing Seam Metal Roofing). Voila, instant energy efficient, solid as a rock, high performance 40 year roof.

      Draw a big rectangle. Draw a line right down the center (top to bottom), dissecting it. That dissecting line is the ISBU. The big space on either side is the earthbag bonus!

      The south side gets sliding glass doors (at least 2 sets, 3 is better) and essentially becomes a sunspace.

      In this manner, (1) 40′ High Cube container will yield over 1,300 square feet. Plus, by using those earthbags and a SIP roof, you only insulate the container ENDS and the bottom.

      (Okay, you insulate the bathroom and shower walls too. Otherwise, it’s kinda “musical”. Oy. :)

      This represents a HUGE money (and labor!) savings when building a “DIY Castle”.

      I’m talking about them on my blog and Owen and I will be talking about them here, in “play by play” mode, I suspect! ;)

  2. While none of our little projects rival you guys (we work primarily with ISBU shipping containers), we’ve used a modified “bazooka” (like the ones that shoot on ceiling texture) to shoot a papercrete-like mixture onto the earthbag walls at day’s end (provided the wall was “completed”.)

    At the end of the week, a second shot is applied, to set up over the weekend.

    It was easy, no buckets or brushes were required, the texture looked organic and cool, and clean-up was minimal. Plus, it was fun.

    (Okay, as much fun as any construction task CAN be…)

    Final finishing varied.

    Note that most of the locations were “Arid” or high summer alpine…

    It seemed to work… ;)

      • Yeah, but we got it on Ebay for like $29 and shipping… ;)

        As I recall, in most cases we actually applied a lightweight cement plaster mixture over the papercrete, to help combat the moisture problems inherent in papercrete using the same bazooka.

        (All we did was play with the air pressure.)

        It stuck just fine.

        As Kelly says, papercrete does soak up water like a sponge.

        That last layer of plaster really did the job.

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