| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 1 |
0%
|
| 1 | Metal, tin or zinc | 275 |
11.5%
|
| 2 | Tiles | 150 |
6.3%
|
| 3 | Shingles | 5 |
0.2%
|
| 4 | Thatch or grass | 653 |
27.2%
|
| 5 | Plastic sheets | 7 |
0.3%
|
| 6 | Asbestos | 1273 |
53%
|
| 7 | Multiple materials | 32 |
1.3%
|
| 8 | Concrete | 3 |
0.1%
|
| 9 | Some other material | 1 |
0%
|
| 10 | Could not tell / could not see | 0 |
0%
|