| Value | Category | Cases | |
|---|---|---|---|
| 1 | Metal, aluminum, tin or zinc | 816 |
68%
|
| 2 | Tiles | 95 |
7.9%
|
| 3 | Shingles | 2 |
0.2%
|
| 4 | Thatch or grass | 184 |
15.3%
|
| 5 | Plastic sheets | 31 |
2.6%
|
| 6 | Asbestos | 6 |
0.5%
|
| 7 | Multiple materials | 39 |
3.3%
|
| 8 | Concrete | 8 |
0.7%
|
| 9 | Some other material | 17 |
1.4%
|
| 10 | Could not tell / could not see | 2 |
0.2%
|