Roof system material [ ROOFSYSMAT ] - jcgomezz/Building_taxonomy GitHub Wiki

The general classification of the material of the roof system. Roof system is the structure that supports roof covering and environmental loading (such as rain and snow). Roof system is often not exposed from the exterior of the building. The material of roof system is usually different from the material of roof covering. [ source: online GEM taxonomy glossary ]

Roof material, unknown R99

Masonry roof RM

Earthen roof RE

Concrete roof RC

Metal roof RME

Wooden roof RWO

Fabric roof RFA

Roof material, other RO