Earthen roof covering [RMT9 - jcgomezz/Building_taxonomy GitHub Wiki
All roof types of earthen construction, including adobe-type covering with lathes. Includes 'green roof', 'sod roof', 'turf roof', where the roof is covered with a layer of soil on a waterproof membrane and planted with grass or plants.
Earthen roof covering, Iran (F. Naeim, World Housing Encyclopedia Report 104)