“That can’t be true’: Hallbergmoos middle school is only 15 years old - and is already in need of renovation. The photovoltaic system on the flat-sloped metal roofs was not installed professionally.

“It is a combination of many causes,” said Benjamin Attensberger in the Hallberg Moos building committee on Tuesday. According to an initial rough estimate, 1.7 million euros were estimated for the renovation, but as a precautionary measure, two million euros was set aside in the budget.