ABSTRACT

Building orientation and space planning offer the opportunity to align daylight access and direct sunlight exposure with established visual comfort criteria. In side-lit buildings, the perimeter zones in orientations other than north are typically subject to large fluctuations in illumination and direct sunlight penetration. Sidelighting refers to delivering light, and often views to the outdoors, through vertical glazing at the perimeter of a building. When designing toplighting strategies, it is important to consider the size and placement of the apertures, their proximity to adjacent reflective surfaces, and line of sight to the apertures so as to avoid glare potential, and to understand the role of ceiling height. With integrated lighting, a major component of the controls is photocell responsive lighting controls. Central to the concept of integrated lighting with dynamic scenes is the use of controls for electric lighting.