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Children spend around 200 days in school per year and 70% of that time is spent inside classrooms. 

Alongside the home, classrooms are one of the most important indoor environments for children - but are today's classrooms designed to stimulate learning and boost performance? 

Unfortunately not - too many children across Europe are working in classrooms with an inadequate supply of fresh air and daylight, as revealed in a recent study by the German research institute, Fraunhofer Institute for Building Physics IBP. 

Coupled with new research from INSERM/UPMC (Epidemiology of Allergic and Respiratory Disease (EPAR) Department, IPLESP), which has shown that academic performance can be boosted by up to 15% with more access daylight, we need to take action.

A healthy indoor climate is crucial if we want to ensure that children get the best chance of success at school. Alongside recent studies which have proven this to be true, our work at Langebjerg School and Endrup School have drastically improved the lives of both school children and teachers alike.

Peter Foldbjerg, Head of the VELUX Group’s Knowledge Centre

Daylight boosts academic performance

Indoor climate in European classrooms

Learn more about the importance of indoor climate in schools

Hear from pupils at Langebjerg School following our renovation project


rise in pupils’ performance in classrooms with larger windows - UPMC/INSERM (EPAR IPLESP)

6.7% - 9.5%

conditional economic growth of the country if there was an increase in school childrens’ performance by 2.8% -Fraunhofer IBP

3.7% - 5.7%

Daylight Factor was achieved at the Endrup School by installing roof windows

10 points

increase on the PISA score if taught in a good indoor climate.

10 PISA points

increase is equivalent to a GDP growth of 0.17 per cent due to higher productivity and profitability in a more well-educated population.

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