Insulating a root cellar?

Konrad___far_northMay 30, 2012

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?

Thank you for reporting this comment. Undo

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.

    Bookmark   May 30, 2012 at 6:02AM
Thank you for reporting this comment. Undo

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

    Bookmark   May 30, 2012 at 9:41PM
Sign Up to comment
More Discussions
Considering buying an odd lot
We've been planning with the assumption that we'd build...
Have a personal build blog? Link it here!
I have LOVED looking through all the blogs that have...
Floorplan advice
We are a family of 4 with 2 young kids ages 3 and 10...
Open Cell Attic Insulation. No baffles/No vapor barrier?
We are in Chicago and are putting on an addition that...
Thinking about driveways
One of the few things my husband requests in our new...
© 2015 Houzz Inc. Houzz® The new way to design your home™