Here is a video of our roof being covered up with 12mm thick plywood sheets, starting on the “A” roof section and going around anti-clockwise and finishing on the “P”, right back at the starting point.
We spent a total of 21 days in total (this includes two half days), so about 42 man-days of work (about 180 man-hours), in the whole month of July. The video has been speeded up 600x times faster and it is only 4½ minutes long to watch the whole roof being magically covered up!