May 14, 2016
Across North America, approximately 6,000 people who live in some form of underground architecture. On March 14 we observe National Underground America Day.
One of the top advantages to a subterranean dwelling is energy conservation. Completely covered homes or Earth-sheltered homes are covered on all sides with earth while earth-bermed homes leave one side exposed. Both allow for more stable temperatures within the home and less exposure to the elements.
There are also some disadvantages. If you like lots of light and throwing open the windows on a summer day, this type of house might not be for you.