[esp-r] Setting Shading Coefficient for transparent constructions and double facade

[lzyhust]

    There is optics for transparent glass in the databbase. Then how to change the Sc for the transparent construction ?And how to do if there are three layers for transparent constructions, and each layer has a Shading Coefficient.
 
    For constrcut a double facade building, how to define the the inner glass in Shading&insolation>
 


I have established a double facade model(see the picture). It shows no selected source When i try to compute the shading or insolation for the inner glass. 
 
Many thanks,
Teresa
        

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