the use of natural light from outside to replace or supplement electrical light indoors, which produces energy savings.
Daylighting may be specified for any of the perimeter zones. When daylighting is modeled, the ceiling is assumed to have a reflectance of 80%, walls 60% and floors 20%.If interior shade is specified, windows are assumed to have a medium colored venetian blind that is closed when solar gain exceeds 30 Btu/h-ftï¿½ï¿½ï¿½ï¿½ï¿½ï¿½Ã‚Â².When the blind is closed, the visible light transmission of the glazing is assumed to be reduced to 60% of the light transmission of the window with the blind open. The reference point for daylighting calculations is assumed to be located in the center of the daylit zone.
The means by which daylight is brought into a building to either supplement or replace electrical lighting in order to allow the occupants to perform their tasks.
the technique of using natural light from windows, skylights and other openings to supplement or replace a building's artificial lighting system. When applied properly, daylighting can reduce a facility's lighting costs. When applied improperly, however, it can not only lead to inappropriate light levels but can also raise the building's cooling costs by introducing high levels of solar heat into the interior of the building.
Daylighting is the use of various design techniques to enhance the use of natural light in a building. Daylighting decreases reliance on electric lights and mechanical systems through the use of windows, skylights, light shelves, and other techniques that maximize sunlight while minimizing glare and excess heat. Green buildings often use daylighting.
Using natural light in many different ways in a building. By using various design methods, this light decreases reliance on electricity by using windows and skylights.
The reorientation of daylight by means of systems incorporating reflective and adjustable surfaces or grilles. Daylighting systems re-direct natural light, distributing diffused light in a roomspace and prevent strong areas of glare.
The use of sunlight to supplement or replace electric lighting
In terms of building analysis, daylighting refers to the process of admitting diffuse light from the sky into internal spaces within a building. See also: Wiki Definition, Related Pages
Illuminating the interior of a building by natural means.
The use of direct, diffuse, or reflected sunlight to provide supplemental lighting for building interiors.
Daylighting is the practice of placing windows, or other transparent media, and reflective surfaces so that, during the day, natural light provides effective internal illumination.