When you see the Sun.Day certificate, you’ll know a home of good daylight.
About Sun.day
Sun.Day is an innovative daylight
assessment tool to help you
choose the perfectly lit home.
DESIGNED for daylight
Our minds and bodies are conditioned to respond to natural cycles of light. Studies show that “proper light at proper time” positively influences our mood, productivity, and general well-being.
60%
of homebuyers rank ‘good natural light’ as the most important attribute when looking to buy a new home.
90%
of our time is spent indoors, according to the WHO. With so much of our lives spent working, learning, sleeping, and playing inside, it’s more important than ever that indoor environments support our health.
Sun.Day STORIES
Check how proper daylight changed
the lives of homebuyers.
INNOVATIVE DAYLIGHT ASSESSMENT
Sun.Day makes the home buying process easier and more transparent. It allows you to understand the impact of daylight on your indoor spaces, family, and well-being.
the process
3-step assessment method to find the perfect daylight
Simulation
As part of the assessment, a daylight simulations is made every time a home is rated for a Sun.Day Certificate.
Simulation
As part of the assessment, a daylight simulations is made every time a home is rated for a Sun.Day Certificate.
Simulation
As part of the assessment, a daylight simulations is made every time a home is rated for a Sun.Day Certificate.
Simulation
As part of the assessment, a daylight simulations is made every time a home is rated for a Sun.Day Certificate.
Simulation
As part of the assessment, a daylight simulations is made every time a home is rated for a Sun.Day Certificate.
1
100-200 lux
1
100-200 lux
1
100-200 lux
1
100-200 lux
“They couldn't see the potential at all. The attic was dark, narrow, and had an old chimney in the middle. Nevertheless, we knew we wanted to do it”, says René, who sought advice from VELUX consultants on what type of windows would contribute most to the space.
VELUX roof windows added height to the ceiling and expanded new possibilities for the room.
higher home value
A Sun.Day mark
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Thanks to the Sun.Day certificate, the home rating significantly improved.
4.6
ABOUT SUN.DAY
The Sun.Day mark
The Sun.Day mark is the official mark for sufficient daylight according to an EN (European Norm). It was developed in 2022 and is based on a 3-step assessment method to calculate the illuminance in a home or building.