Rockfon white ceiling reflecting daylight to enhance natural lighting.

The Light Reflection of White-Coloured Ceilings

Well-distributed daylight helps create healthier, more energy-efficient spaces.

Rockfon white-coloured ceiling solutions reflect up to 87 percent daylight, encouraging well-being and allowing for indoor climates that are less reliant on artificial lighting.

Rockfon white ceiling reflecting daylight to enhance natural lighting.

The Role of the Ceiling

The ceiling is often the largest unused surface in a space, making it an incredibly powerful tool for maximising natural daylight.

Ceiling surfaces that reflect and diffuse light spread daylight deeper into a room, extending the benefits of natural light to support circadian rhythms, well-being, cognitive performance, and more energy-efficient buildings.

Light Reflection

LRV expresses, in percentage, how much light a surface reflects. It measures all reflected light; a mirror is 100 percent LRV, while black velvet is 0 percent.

Rockfon white-coloured ceilings reflect up to 87 percent of daylight, helping every window illuminate more of the room.

Light Diffusion

Light diffusion occurs when incoming light scatters in all directions, creating even, shadow‑free illumination.

By reflecting and diffusing daylight, Rockfon white-coloured ceiling solutions help illuminate the entire room more evenly.

Lighting in three numbers

>22%

Research shows that a ceiling with a light reflection of 87% can result in energy savings of up to 22.75% per year*

86%

86% of surveyed users consider daylighting to be their preferred source of lighting**

99%

Rockfon white-coloured ceiling solutions reflect up to 87 percent daylight and diffuse >99%.

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*COWI. (2015). Daylight study on new Rockfon ceiling panels 

**Galasiu, Anca D., and Jennifer A. Veitch. 2006. “Occupant Preferences and Satisfaction with the Luminous Environment and Control Systems in Daylit Offices: A Literature Review.” Energy and Buildings 38 (7): 728–42. https://doi.org/10.1016/j.enbuild.2006.03.001