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Fully Ducted HVAC

Question asked by gruesm76 on Dec 14, 2018
Latest reply on Jan 22, 2019 by milt.werner

In regards to LSC 19.3.7.3 (2) What would be considered "fully-ducted" penetrations in smoke barriers?  Does this require metal ductwork, or would flex-duct also met the requirement.  Thanks.

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