[Bldg-sim] eQuest Modeling of Film on top of Glass

[John Aulbach]

Okay, Smart peoples:
 
I have an existing glass (say Solar Bronze) which has properties of SHGC, VT, and U-Value. I now wish to take this same glass and add a film on top of it to further enhance the SHGC and VT properties.
 
I cannot just take a diferent window from the Glass Library, because I do not know the additive SHGC and VT effects.  Is there any way to do a "glass-layers" operation? Or must I just guess at a glass that MIGHT be the equivalent?
 
Thanks.
 John R. Aulbach, PE, CEM
Senior Energy Engineer

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