| Value | Category | Cases | |
|---|---|---|---|
| Asbestos & only part have gutters | 1 |
16.7%
|
|
| Caravan roof | 1 |
16.7%
|
|
| No guttering | 1 |
16.7%
|
|
| Zinc | 1 |
16.7%
|
|
| Zinc and wood | 2 |
33.3%
|