after 8 months of research, i found the #insulation which fits all my requirements:
dont panic, its #organic and has the same u-value as styrofoam with a much higher breathability
https://cdn.fossto...
@nprofile1q... Straw bales? Nice. Planning to do that above ground too. Sadly we only got old hay in the barn, not straw :)
Never found anything that works below ground and isn't made of plastic though.
Never found anything that works below ground and isn't made of plastic though.
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