| Value | Category | Cases | |
|---|---|---|---|
| 1 | Clay tiles | 556 |
36.8%
|
| 2 | Asbestos panels | 90 |
6%
|
| 3 | Zinc panels | 741 |
49.1%
|
| 4 | Concrete | 17 |
1.1%
|
| 5 | Wood | 17 |
1.1%
|
| 6 | Straw, palms or similar | 26 |
1.7%
|
| 7 | Scrap material | 10 |
0.7%
|
| 8 | Other | 41 |
2.7%
|
| 98 | Don't Know/Not Known | 1 |
0.1%
|
| 99 | Refused/No response | 11 |
0.7%
|