Other roof work is more deterministic, such as the replacement over the last few days of the last missing downpipe. Below is the "before" photograph showing the ferns growing in the damp gully created by the absence of a downpipe. Before, I bought the castle there were ferns growing like this all over the building.
|gully before clearing|
Below is the "after" photograph, showing the cleared gully - just before the new downpipe and hopper head were put in place. The scaffolding was erected to provide high-level access.
|gully after clearing|