| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 3 |
0.3%
|
| 1 | Metal, tin or zinc | 907 |
75.6%
|
| 2 | Tiles | 127 |
10.6%
|
| 3 | Shingles | 2 |
0.2%
|
| 4 | Thatch or grass | 150 |
12.5%
|
| 5 | Plastic sheets | 1 |
0.1%
|
| 6 | Asbestos | 5 |
0.4%
|
| 7 | Multiple materials | 5 |
0.4%
|
| 8 | Some other material | 0 |
0%
|
| 9 | Could not tell/could not see | 0 |
0%
|