Relation between the Light Transmission of the Glazing System and Daylight Factor

Abstract:

Windows are one of the most important parts of the building façade. Their main function is to ensure sufficient illumination of interiors and contact with outdoor environment, either directly or indirectly. The optical properties of the glazed part of these envelop apertures have significant influence on a lot of requirements, which have to be satisfied at the same time. The daylight distribution on the working plane is most affected by the glazing system’s light transmission. This study offers a simple method, how to find the appropriate value of the glazing system’s light transmission in relation to the Daylight Factor, in order to ensure the required daylight distribution in interior.

• Periodical: Advanced Materials Research (Volume 1041)
• Pages: 395-398
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1041.395
• Online since: October 2014
• Authors: Kristián Kondáš*, Stanislav Darula
• Keywords: Daylight Factor, Glazing System, Light Transmission

References

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[2] STN 73 0580-1: 1987, Denné osvetlenie budov. Časť 1: Základné požiadavky (Daylighting in buildings. Part 1: Basic requirements), ÚNM, Praha, (1987).

[3] STN 73 0580-2: 2000, Denné osvetlenie budov. Časť 2: Denné osvetlenie budov na bývanie (Daylighting in buildings. Part 2: Daylighting of residential buildings), SÚTN, Bratislava, (2000).

[4] EN 12464-1: 2011, Light and lighting. Lighting of work places. Indoor work places, (2011).

DOI: 10.3403/02729981u

[5] A. Iversen et al., Daylight calculation in practice. An investigation of the ability of nine daylight simulation programs to calculate the daylight factor in five typical rooms, first ed., Danish Building Research Institute, Aalborg University, Copenhagen, (2013).