| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 5 |
0.4%
|
| 1 | Metal, tin or zinc | 612 |
51%
|
| 2 | Tiles | 13 |
1.1%
|
| 3 | Shingles | 5 |
0.4%
|
| 4 | Thatch or grass | 379 |
31.6%
|
| 5 | Plastic sheets | 1 |
0.1%
|
| 6 | Asbestos | 135 |
11.3%
|
| 7 | Multiple materials | 29 |
2.4%
|
| 8 | Concrete | 0 |
0%
|
| 9 | Some other material | 9 |
0.8%
|
| 10 | Could not tell / could not see | 11 |
0.9%
|