| Value | Category | Cases | |
|---|---|---|---|
| 1 | Metal, aluminum, tin or zinc | 829 |
69.1%
|
| 2 | Tiles | 1 |
0.1%
|
| 3 | Shingles | 4 |
0.3%
|
| 4 | Thatch or grass | 191 |
15.9%
|
| 5 | Plastic sheets | 7 |
0.6%
|
| 6 | Asbestos | 5 |
0.4%
|
| 7 | Multiple materials | 125 |
10.4%
|
| 8 | Concrete | 34 |
2.8%
|
| 9 | Some other material | 3 |
0.3%
|
| 10 | Could not tell / could not see | 1 |
0.1%
|