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3-hour roof-ceiling assembly

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Hi Jim:

 

Look at GA File No. FC 3140, or FC 3012.  They are available at The Gypsum Association web site, www.gypsum.org These references are per the 2006 Manual.

 

Concrete fill on steel deck, steel joists and drywall ceiling.  3-hour protection.

 

Respectfully,

IDS Group, Inc.

 

Bob Freeman, AIA EIT

(949) 387-8500