Earth sheltering is the architectural practice of using earth against building walls for external thermal mass, to reduce heat loss, and to easily maintain a steady indoor air temperature. Earth sheltering is popular in modern times among advocates of passive solar and sustainable architecture, but has been around for nearly as long as humans have been constructing their own shelter.
Definition: Earth sheltered, or underground, houses lie mostly beneath the ground surface. The surrounding soil provides natural insulation, making these houses inexpensive to heat and cool. The best location for an earth sheltered house is on a well-drained hillside. Windows facing the south or an overhead skylight will fill the interior with sunshine.
Designers of underground homes have developed several methods for regulating the interior temperature. Some underground homes depend entirely on the natural insulation provided by the walls and floors. Sometimes tubes are channeled through the earth to bring in air. And, sometimes a heat pump is used to regulate temperatures.
Earth sheltered homes are typically made of concrete. Construction costs can run 10% higher than that of a conventional house. However, enthusiasts say that the lower maintenance and energy costs make earth sheltered homes a good buy. But, I think it’s looks like an extreme/over “roof garden” for todays architecture.
Earth sheltered homes are not suitable for permafrost regions.
Are you wanna go back to the prehistoric cave living?
I think you should call and Architectural Psichologist
Hehe, just kidding! 😀