Old building flat roof bright spots ceiling

If you are so fidgety, then open one of these spots and take a look.

If you don’t find anything exciting, you can thank your neighbor with a nice rumor ;-)

If you are so restless, then open one of these spots and take a look. If you don’t find anything exciting then, you can thank your neighbor with a nice rumor ;-)

No no, the ceiling still looks good, if you say it’s nonsense then I’ll leave it. Especially because I found out this morning that these small hollow spots also exist on the ground floor. So again, if the reinforcement was damaged, cracks on the roof and water ingress, then at least inside on the ceiling I should have water stains, cracks, chipping, right? Because rust expands?

You would see rust, as [Rostwasser] makes dark red stains. Don't drive yourself crazy.