Question-and-Answer Resource for the Building Energy Modeling Community
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Hi,
yes the 2000 cd/m² is a recommended threshold value to use, if you are going for the threshold method.
Now, on which particular method to use (factor, threshold, task area), it depends on the scene. In short, if there is contrast glare you should use the task method, and if there is saturation glare you should use the threshold method. You can read details on why this is true from: https://www.researchgate.net/publication/326588406_Daylight_Discomfort_Glare_Evaluation_with_Evalglare_Influence_of_Parameters_and_Methods_on_the_Accuracy_of_Discomfort_Glare_Prediction
