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Insulating a root cellar?

Posted by konrad___far_north (My Page) on
Wed, May 30, 12 at 2:00

I want to insulate about the top 4 feet of the concrete root cellar, [outside] with high density Styrofoam about 1 1/2 or 2" think, it will be covered over with about 4 feet of dirt.

I'm not really sure how to go about this,...slap tar over and stick the Styrofoam on and cover with 2 layers of plastic to keep the water off the Styrofoam. Or should I also tar over the Styrofoam before the plastic?
Any idea?


Follow-Up Postings:

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RE: Insulating a root cellar?

Tar might dissolve the foam. Test it before you try a big area. They do make special adhesives for foam. If it's outside, you need to protect any foam above ground from sunlight- it degrades foam as well.


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RE: Insulating a root cellar?

Thank you flgargoyle for this information!
Testing first is a good idea.


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