| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 4 |
0.3%
|
| 1 | Metal, tin or zinc | 910 |
75.9%
|
| 2 | Tiles | 27 |
2.3%
|
| 3 | Shingles | 0 |
0%
|
| 4 | Thatch or grass | 228 |
19%
|
| 5 | Plastic sheets | 0 |
0%
|
| 6 | Asbestos | 17 |
1.4%
|
| 7 | Multiple materials | 7 |
0.6%
|
| 8 | Some other material | 6 |
0.5%
|
| 9 | Could not tell / could not see | 0 |
0%
|