Abstract
This chapter discusses material properties for advanced daylighting in building. Some recent developments in materials used to illuminate interior and exterior spaces with daylight, and mathematical modeling of their interaction with light for design purposes are presented. The Sydney 2000 Olympic Stadium roof and a new solid light guide system are two examples. Emphasis is on making full use of the daylight resource, not just the diffuse component, while controlling the associated solar heat gain. Sensitivity to glare is essential if materials capabilities are to be realized. The clever use of natural light can save substantial energy, add new dimensions to the beauty and impact of interior and exterior spaces, and enhance the enjoyment and productivity of occupants. Daylighting, previously either undervalued due to an emphasis on thermal energy, or put into the “too hard basket” because of its relative complexity compared to thermal issues, is increasingly being recognized as a core issue in the new energy efficient design era.
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