| Value | Category |
|---|---|
| 1 | Zinc, copper, or galvanized iron |
| 2 | Roof-tile of clay or cement |
| 3 | Asbest/Cement boards |
| 4 | Roof-tile of wood |
| 5 | Tar corrugated paper sheets |
| 6 | Reeds stick-and-mud, cardboard, tin or wood waste material |
| 7 | Other material |
| 8 | Unknown |
| 9 | NIU (not in universe) |