Theoretically one might think modeling the glazing and shadowbox portions of a curtain wall with a single assembly u-value would yield the same result as modeling the curtain wall as glazing for the transparent part and external wall for the shadowbox, both with independent assembly u-values. Has anyone ever tried comparing such a scenario and what result was achieved?
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Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5907 thumbs up
April 2, 2016 - 4:08 pm
All things being equal you should get the same result.
Typically however there is additional material and/or insulation behind the spandrel panels so the two scenarios are usually not equal.