<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:12pt"><div style="RIGHT: auto"><SPAN style="RIGHT: auto">Okay, Smart peoples:</SPAN></div>
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<div style="RIGHT: auto"><SPAN style="RIGHT: auto">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.</SPAN></div>
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<div style="RIGHT: auto"><SPAN style="RIGHT: auto">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?</SPAN></div>
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<div style="RIGHT: auto"><SPAN style="RIGHT: auto">Thanks.<VAR id=yui-ie-cursor></VAR></SPAN></div>
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<div style="MARGIN: 0in 0in 0pt" class=MsoNormal><A name=_MailAutoSig><SPAN style="COLOR: #1f497d; mso-fareast-font-family: 'Times New Roman'; mso-fareast-theme-font: minor-fareast; mso-no-proof: yes"><FONT face=Calibri>John R. Aulbach, PE, CEM<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></FONT></SPAN></A></div>
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