| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Metal, tin or zinc | 1949 |
81.2%
|
| 2 | Tiles | 51 |
2.1%
|
| 3 | Shingles | 18 |
0.8%
|
| 4 | Thatch or grass | 94 |
3.9%
|
| 5 | Plastic sheets | 10 |
0.4%
|
| 6 | Asbestos | 138 |
5.8%
|
| 7 | Multiple materials | 21 |
0.9%
|
| 8 | Concrete | 57 |
2.4%
|
| 9 | Some other material | 52 |
2.2%
|
| 10 | Could not tell / could not see | 10 |
0.4%
|