| Value | Category | Cases | |
|---|---|---|---|
| 1 | Metal, aluminum, tin or zinc | 1339 |
83.7%
|
| 2 | Tiles | 26 |
1.6%
|
| 3 | Shingles | 9 |
0.6%
|
| 4 | Thatch or grass | 107 |
6.7%
|
| 5 | Plastic sheets | 3 |
0.2%
|
| 6 | Asbestos | 62 |
3.9%
|
| 7 | Multiple materials | 5 |
0.3%
|
| 8 | Concrete | 20 |
1.3%
|
| 9 | Some other material | 25 |
1.6%
|
| 10 | Could not tell / could not see | 4 |
0.3%
|