The classrooms were dark, the air felt stuffy and the old roof plates were cracking. But when Langebjerg School embarked on a renovation with roof windows, the solution turned out to be both comfortable and contemporary.

After taking the rooms into use, the improved lighting was the most valued feature among the pupils: "Previously, when the room was darker, it sometimes felt sort of shut in," 10-year-old Erik explains, while his classmate Nasrin adds: "Now it’s easier to find a good spot when you have to work."

After taking the rooms into use, the improved lighting was the most valued feature among the pupils: "Previously, when the room was darker, it sometimes felt sort of shut in," 10-year-old Erik explains, while his classmate Nasrin adds: "Now it’s easier to find a good spot when you have to work."

After taking the rooms into use, the improved lighting was the most valued feature among the pupils: "Previously, when the room was darker, it sometimes felt sort of shut in," 10-year-old Erik explains, while his classmate Nasrin adds: "Now it’s easier to find a good spot when you have to work."

After taking the rooms into use, the improved lighting was the most valued feature among the pupils: "Previously, when the room was darker, it sometimes felt sort of shut in," 10-year-old Erik explains, while his classmate Nasrin adds: "Now it’s easier to find a good spot when you have to work."

After taking the rooms into use, the improved lighting was the most valued feature among the pupils: "Previously, when the room was darker, it sometimes felt sort of shut in," 10-year-old Erik explains, while his classmate Nasrin adds: "Now it’s easier to find a good spot when you have to work."

Facts 

Langebjerg School is located in the municipality of Fredensborg, around 40 km north of the Danish capital of Copenhagen. 

In 2014, the school and municipality administration embarked on the renovation of six classrooms, a hall, toilets and a common room in the north building.

Daylight factor

An avarage DF below 2% generally makes a room look dull and electrical lighting is likely to be frequently used, whereas an interior will look substantially daylit when the avarage DF is above 5%

Simulations were made by the VELUX Daylight Visualizer 2, a software tool dedicated to daylighting design and analysis. For more details and download, visit http://viz.velux.com.