Architectural light shelf

Light shelves are placed above eye-level and have high-reflectance upper surfaces, which reflect daylight onto the ceiling and deeper into the space.

Light shelves make it possible for daylight to penetrate the space up to 2.5 times the distance between the floor and the top of the window.

Furthermore, incorporating light shelves in a building design is admissible for the LEED point system, falling under the “Indoor Environment Quality: Daylight & Views” category.

They also require a higher than average floor-to-ceiling height in order for them to be effective, or daylight may be inadvertently redirected into occupants' eyes.

Exterior louver systems often rely on adjustments from either complex servo motors or building occupants throughout the day to operate well.