In this arch design the "outer shell" to protect of elements is a geodesic dome.
The "inner home" does not need roof and siding, just structural walls, all from wood.
The outer dome also acts and a glasshouse, with enough plants to feed a family of four.
Real living with the nature, as popular in Scandinavia.
Nordic home encased within geodesic dome for passive solar - YouTube
Nordic home encased within geodesic dome for passive solar – *faircompanies
Dome of Visions - Wikipedia, den frie encyklopædi
![](https://upload.wikimedia.org/wikipedia/commons/thumb/8/84/Buurthuis_Aarhus_%2831483960067%29.jpg/2880px-Buurthuis_Aarhus_%2831483960067%29.jpg)