Sod is the upper layer of soil held together by (usually grass) roots. It was used as a building material, in a similar way to soilbags.
Sod is the upper layer of soil held together by (usually grass) roots. It was used as a building material, in a similar way to soilbags.
I think cob is the way to go personally, but the general theme of using soil as a building material fascinates me.