Looking through a window I saw someone unloading a roadroller. I hoped they didn't start working on their road right now as it was my place of exit. But as I came back to the window later it showed the man had only unloaded and parked the machine and pretty soon drove off again with his truck.

From the top of the staircase. Man (in red overall near first wheel of trailer) unloading roller

Here on top of the building were two passageways with in-between more fans and air treatment equipment.

Flashlight for scale again

One could get a view over the roof through some classless windows and doors.

Watertower and chimney of "Baumwollefabrik Gronau"

Back to the top of the staircase I tried to get to the watertank above me, but I could not find an easy climbable way. The hatch was locked with a padlock and without a ladder. Another more acrobatic route I would have tried if I was on the ground but not here with a chance of falling down 5 floors through a broken window.

More roadcontruction on the other side of the river

Unreachable watertank above me. It was used for the sprinkler installation if I'm correct.

Going all the way down again and leaving the main building I explored the smaller building which seemingly housed the power supply for the factory.

From up there to down here