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hawksapprentice said:
And you can bury a second one to grow in

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hawksapprentice said:
Pretty awesome.  And you can bury a second one to grow in

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this is pretty common in manitoba.


you can buy em 1500-2000 used.  and with a hoe, u can bury it in a day or 2...

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hawksapprentice said:
I would love to do that.

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RogerRabbit said:
Here's a shot of the 4' X 8' sheets of Dow board as I was laying it on the roof of my shipping container.  There's two layers, each of R10, giving a total of R20 followed by whatever insulation the soil gives.  We'll see how it performs later this winter when it's down to -30F for weeks at a time.  I just checked a few minutes ago and it's 54F in the growing section and 74F in the colonization room, while +10F outside.

I also used the Dow board on the front entrance wall, outside of a 2 X 6 wall with R19 bats installed, and behind my 24" thick rock and concrete wall, now finished to 9 feet tall.  I'll probably add another foot to the top next spring after the thaw.  That's the retaining wall so I can have the excavator come back out and finish piling soil up around the entrance.
RR

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