| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 1 |
0.1%
|
| 1 | Metal, tin or zinc | 467 |
38.9%
|
| 2 | Tiles | 88 |
7.3%
|
| 3 | Shingles | 3 |
0.3%
|
| 4 | Thatch or grass | 206 |
17.2%
|
| 5 | Plastic sheets | 11 |
0.9%
|
| 6 | Asbestos | 372 |
31%
|
| 7 | Multiple materials | 11 |
0.9%
|
| 8 | Some other material | 7 |
0.6%
|
| 9 | Could not tell/could not see | 34 |
2.8%
|