| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Metal, tin or zinc | 2135 |
89%
|
| 2 | Tiles | 19 |
0.8%
|
| 3 | Shingles | 8 |
0.3%
|
| 4 | Thatch or grass | 159 |
6.6%
|
| 5 | Plastic sheets | 4 |
0.2%
|
| 6 | Asbestos | 55 |
2.3%
|
| 7 | Multiple materials | 9 |
0.4%
|
| 8 | Some other material | 8 |
0.3%
|
| 9 | Could not tell/could not see | 3 |
0.1%
|