Diffuse transmittance of non-clear glass td -- Algorithm 2.36

For clear glass it is assumed that the no daylight is lost by absorption in the glass. In other words, the KL value of the glass is taken to be zero. For body-tinted solar glasses this is not the case and it becomes necessary to know how the transmission properties of the glass will vary with KL value.


Normal incidence KL value of the glass, KL



Petherbridge(1) , Sharples(2)

1. Petherbridge P Transmission characteristics of window glasses and sun controls Sunlight and buildings: CIE Conference Bouwcentrum, Rotterdam 1967

2. Sharples S, Page J K and Souster C G Modelling the daylight levels produced in rectangular, side-lit rooms by vertical windows containing clear or body-tinted glazing Department of Building Science, University of Sheffield (1981)

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