Although schools have been renovated across municipalities in recent years, these changes have not been reflected in the mass experiment results.
“The results from Mass Experiment 2021 do not surprise me. Things do look better for the schools with ventilation. But improving indoor climate in schools is a long, hard process that involves all links in the decision-making chain – the individual class, the school management and the municipal administration, and also a local and national political focus. And this takes a long time,” says Anne Gade Iversen, project manager at Realdania.
“The results from the mass experiments in 2009 and 2014 also received attention, but we did not have the same tools to improve the indoor climate back then, targeted at municipalities, that we have now. We are therefore in a stronger position today, and we also see examples of municipalities that have found solutions and serve as an inspiration to others,” she adds.