| Value | Category | Cases | |
|---|---|---|---|
| 1 | Metal, tin, zinc | 1064 |
48.4%
|
| 2 | Tiles | 427 |
19.4%
|
| 3 | Shingles | 12 |
0.5%
|
| 4 | Thatch | 113 |
5.1%
|
| 5 | Plastic sheets | 14 |
0.6%
|
| 6 | Asbestos | 460 |
20.9%
|
| 7 | Multiple materials | 48 |
2.2%
|
| 8 | Could not see/could not tell | 62 |
2.8%
|