Transcription of Horizontal Shaftwall Duct and Ceiling Assemblies …
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Horizontal Shaftwall Duct and Ceiling Assemblies …
137 CAVITY Shaftwall SYSTEMS09 21 21 TRACKGYPSUM BOARD1/2" FIRE-SHIELD CPOWER DRIVEN FASTENERS24" DRIVEN FASTENERS24 " TYPE S OR S-12 PAN HEAD SCREWS(2 PER STUD)I-STUD 24" TRACKSHAFTLINER1" FIRE-SHIELDJ TRACKTWO HOUR Horizontal duct PROTECTIONWHI : 2" = 1'-0"FLEXIBLE SEALANTH orizontal Shaftwall duct and Ceiling AssembliesDESCRIPTIONMAXIMUM Horizontal SPANS FOR I-STUD ASSEMBLIESC orridor Ceilings AndHorizontal MembraneStair SoffitsAnd duct ProtectionStud SizeMinimum Steel Thickness1-Hour Fire2-Hour Fire2-Hour Firein. (mm)in. (mm)Resistive RatingResistive RatingResistive Rating2 1/2" ( mm) (.508)7'-8" (2337 mm)7'-8" (2337 mm)7'-2" (2184 mm)2 1/2" ( mm) (.)
138 cavity shaftwall systems section 09 21 16.23 shaftwall systems the following paragraphs are for insertion into sections of generic specifications or generic/proprietary specifications covering shaftwall products.the national gypsum company product name follows the generic description in parentheses.
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