| Value | Category | Cases | |
|---|---|---|---|
| 1 | Metal, aluminum, tin or zinc | 2151 |
89.6%
|
| 2 | Tiles | 14 |
0.6%
|
| 3 | Shingles | 13 |
0.5%
|
| 4 | Thatch or grass | 101 |
4.2%
|
| 5 | Plastic sheets | 1 |
0%
|
| 6 | Asbestos | 55 |
2.3%
|
| 7 | Multiple materials | 35 |
1.5%
|
| 8 | Concrete | 18 |
0.8%
|
| 9 | Some other material | 12 |
0.5%
|
| 10 | Could not tell / could not see | 0 |
0%
|