So the works on this store were initially evenings/nights and were just after the clocks went forward.
No problem - done a million times before - piece of cake.
Done over two nights - Tarmac walkway and cladding from the ground, up to 4 metres.
Never checked the work in the daylight after the 1st night. Flying on the project, no issues.
What I woke up to when it was checked after night 2 -
A really fine layer of moss that I just couldn't see, streaking on the cladding that I couldn't see because of all the shadows.
Spoke to the site manager, went onto days & you can see where I'd got halfway back up it on the 3rd day.