This white paper explains how to determine if a ceiling damper is approved for use in a specific fire-rated floor/ceiling or roof/ceiling assembly. It also explains the proprietary nature of designs in UL’s Fire Resistance Directory with respect to ceiling dampers and discusses the relationship between the Fire Resistance Directory and the Gypsum Association’s Fire Resistance Design Manual.
Title: Ceiling Dampers Explained - An AMCA International White Paper
Link: Ceiling Dampers Explained - An AMCA International White Paper
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