2.Windstorm and earthquake protection[edit]
The unique architecture of earth houses protects them against severe windstorms. They cannot be torn away or tipped over by strong winds. Structural engineering and, above all, the lack of corners and exposed parts (roof), eliminate vulnerable surfaces which would otherwise suffer from storm damage.[4] Furthermore, earth houses benefit from improved stability due to the more natural shapes of arches.
3.Landscape protection and land use[edit]
Compared to conventional buildings, earth houses fit perfectly into their surroundings. The soil-covered roofs help incorporate the environment, protect the natural scenery, and contribute to the oxygen-nitrogen balance of the soil, which would otherwise be covered by the foundation of a traditional house, inhibiting nitrogen fixation and aeration of the soil. Contrary to conventional roofs, earth-house roofs restore usable surface area to the environment. They can also be built as terraced structures if the slope is appropriate, thus using far less land area, because the structure can be built right up to the property boundary.[5] Owing to the condensed means of construction, more green space remains available. Furthermore, earth-house structures can easily be built into hilly terrain, as opposed to conventional houses, which would require flat land.