Earth Sheltered Design Legend Satisfactory Satisfactory in most conditions Satisfactory in Limited Conditions Unsatisfactory or Difficult Sustainable Sources 1994-1999. It is generally acknowledged that additional research is needed as well as standardization of terminology and measurements used by researchers. However, earth-sheltered homes and buildings have been successfully constructed throughout the world. Costs are location-specific. May require additional work with lenders.
Numerous precedents exist.
There is limited interest in this type of building due to lack of exposure to examples in our area and misconceptions regarding the interior environment of this type of home. The non-traditional appearance hurts general appeal. The layout of the rooms will have to accommodate a means of egress from sleeping areas. In a warm, humid region, it is possible for humidity to condense in the tube creating a good environment for mold growth. Some analyses have shown that earth tubes can compete with a heat pump when earth temperatures of 58 F are available.