| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Metal, aluminum, tin or zinc | 1029 |
85.8%
|
| 2 | Tiles | 102 |
8.5%
|
| 3 | Shingles | 2 |
0.2%
|
| 4 | Thatch or grass | 37 |
3.1%
|
| 5 | Plastic sheets | 0 |
0%
|
| 6 | Asbestos | 10 |
0.8%
|
| 7 | Multiple materials | 7 |
0.6%
|
| 8 | Concrete | 8 |
0.7%
|
| 9 | Some other material | 1 |
0.1%
|
| 10 | Could not tell / could not see | 4 |
0.3%
|