Rigid foam or fiberglass batts work here. Leave a one-eighth-inch to one-fourth-inch gap between the top of the wall and the joists above it for airflow. The Outdoor/Excavated Root Cellar If you ...

A basement root cellar is convenient and useful ... exist to consider using rigid sheets of foam instead of traditional fiberglass batts. The most important is moisture resistance.

And it's not that difficult (or expensive) to make your own. Traditionally, a root cellar is dug below the frost line, where temperatures are consistent and slow to react to seasonal changes.

a root cellar is more a concept than a physical space—and you can create one in your home pretty easily. You don’t even need to grow your own vegetables to get the benefit of a root cellar ...

Store your vegetables and fruit without electricity with the help of a simple, DIY root cellar. ‘Deadpool’ Director Tim Miller Says He Got Paid $225,000 For ‘Two Years of Work’ on the Film ...