Daylight not only provides brightness, but is also extremely essential for the human body. Making the best possible use of daylight indoors stabilises people's biological rhythms, has positive effects on well-being and saves a lot of energy. However, a sufficient supply of daylight exclusively through windows is only possible up to a relatively small room depth. The remedy for this is daylight technology, which enables uniform, glare-free room illumination regardless of the distance to the outside wall.
Daylight technology uses the advantages of natural light and compensates for its disadvantages. Light street systems and rooflights ensure a sufficient supply of daylight with the help of reflection and refraction in the window area. In addition, suitable shading ensures that disturbing glare caused by shadows can be prevented.
Daylight is characterised by two components: diffuse light from the sky and direct sunlight. The characteristics of the components depend strongly on the weather, time of day and season. Thus, in bad weather, it is also possible that only one component, the diffuse light from the sky, is still present.
Unlike most artificial illumination systems, daylight is never constant. The illumination level changes continuously during the day, even if the change is usually not visible to the human eye. It is precisely this diffuse light from the sky that daylight technology makes use of to illuminate a building with the best possible natural light.
Especially in buildings, people have two essential needs – a pleasant indoor climate and sufficient lighting. Natural light is perceived as far more pleasant than artificial lighting. The incidence of daylight at the workplace creates a natural and pleasant working atmosphere.
Other advantages of daylight:
- Increases concentration and performance
- Improves well-being
- Reduces stress
- Increases creativity
The positive effects of daylight cannot be produced with artificial light. Daylight lamps often promise the same effect, but the combination of intensity, colour spectrum and direction of natural light cannot currently be produced by artificial light.
Energy savings through daylight technology
However, daylight not only creates a better working atmosphere and thus increases the productivity of the workers. As it can replace artificial light to a large extent, it also helps to save energy. Daylight varies depending on the geographical location, time of year and day, as well as the use of anti-glare measures, but on an annual average and depending on the age of the lighting system, 30 to 75 percent energy can be saved – and thus also corresponding costs. This is why translucent lighting elements play an important role in modern architecture.
Various polycarbonate multi-wall panels are available for glazing roof and wall illumination systems that allow daylight in industrial buildings. The skylights of the EUROLIGHT and DELTALIGHT type as well as shed glazing can be designed as hard roofing.
Polycarbonate is a material that is ideally suited as a lighting element. It is characterised by high strength, impact resistance and stiffness. It is also resistant to many mineral acids, salts, oxidising agents and hydrocarbons. The PC panels are coated for UV stabilisation. The light transmission of the PC panels changes only slightly due to weathering. Polycarbonate shows its particular advantages especially as a multi-wall panel.
Advantages of multi-wall panels:
- Lighter alternative to glass infill panels
- Excellent U value
- Hail-resistant in line with SIA standard 280
For new buildings and roof renovations, building owners, planners and architects have trusted the high quality standard and advantages of roda daylight technology for many years. The systems are mounted on an upstand and can be optimally combined with other elements of the roda system range. Together with NSHEVs, they create an ideal unit for natural ventilation, free natural light and smoke and heat exhaust ventilation in the event of fire.