2 Comments to “Re: Udated Expenses”

  1. Leslie Alvo

    Apr 22nd, 2010


    I am very interested in finding out about earthship construction and wonder if you mind people stopping by to see your project. If you have no objections, I’d like to drive up there (I’m in Kelowna) sometime around the middle or end of May.

    Thanks so much.

  2. BobVM

    Aug 1st, 2011

    FWIW, a 50 kg (45kg?) bag of concrete in Ulaanbaatar, Mongolia is going for about US$5. A 50 kg bag of sand is $0.80. Maybe it’s closer to China. I don’t know. Hopefully the insulation is cheaper. The lightest weight styrofoam insulation panels (1m x 2m) are $3.20 each. I’ll have to see how much the harder ones are. They’ll make it whatever hardness you want, so on the thermal wrap maybe I can get away with minimal hardness that I feel the thing will hold together underground, or like in the greenhouse sidewalls. I feel they can be kind of less hard.

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