The main disturbing sources of noise during the tour of the construction site are the plane taking off high in the air and the heavy-duty transporters delivering components for the forthcoming Dippemess'.

The cranes and cement mixers doing their job seem quiet in comparison.

On the construction site next to the ice rink and fairground, where the family pool has been under construction since the groundbreaking ceremony in September until the end of 2023 as a replacement for the Bornheim panorama pool, the fight against emissions of all kinds is of course on the agenda.

For this, Züblin AG, as the executing company, has now received the pre-certification "Sustainable construction site" from the German Sustainable Building Council (DGNB).

Since 2009, the DGNB has been developing a system to measure and compare sustainable building.

For construction companies, such a pre-certificate is

Daniel Meuren

Editor in the Rhein-Main-Zeitung.

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"As a construction company, we want to make our contribution to sustainability," said Johannes Graf, the responsible Züblin manager.

"Of course we also talk about it and thus cultivate our image." Graf explained that sustainable construction initially causes costs if, like Züblin, you rely solely on electricity from renewable sources.

Overall, however, greater sensitivity to these issues also brings savings.

"We make work processes and occupational safety more efficient, which also makes us more economical," says Graf.

For example, the concrete is called up digitally, which avoids traffic jams and emissions from waiting concrete transporters and at the same time increases quality.

Many factors are evaluated

Last year, Züblin was also the first construction company to be certified as sustainable by the DGNB because of such processes.

"We evaluate many factors that we believe contribute to a construction site using resources responsibly," said Markus Kelzenberg from the DGNB.

Of course, this also included the construction workers and occupational safety.

On the family pool construction site, there are corresponding signs in Romanian and Serbian, the mother tongues of many of the construction workers working there.

However, the increase in efficiency cannot prevent the family pool, which was originally estimated at 35 million euros and whose foundations have been laid on schedule, from becoming 15 to 17 percent more expensive.

Frank Junker, managing director of the urban real estate group ABG, had already indicated an increase of this magnitude at the groundbreaking ceremony in September.

The development has confirmed him: In addition, because of the Ukraine war, for example, the price of reinforced concrete has doubled.