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\vVp\\\\t\\\\:�'.:�•• �•�. <br /> Y <br /> §S , � • <br /> ,y _ , <br /> `� 1,. : _- _ . : ' . , - _ - -. -. - . , : . <br /> w' � . v �� ° � -- . . � . � . �- - :ROOF-CEILING SYS <br /> - SYSTEM DESCRIPTI,ON <br /> �� SKETCH AND DESIGN DATA <br /> ��GA FILE,NO�..:RC:2500 . . <br /> _ . ._ ,., s.� ;z. - - - <br /> . , . ,� K�S:'1;�HO.UR::.;�..;;���..;�:,:— _ - , <br /> , GYPSUM BOARD, STEEL.CHANNEL JOISTS, <br /> , NSULATION,,ROOF COVERING <br /> "� CEILING:Two layers of Vz"t e X � <br /> '` YP gypsum wallboard or veneer base applied at right <br /> . angles to flanges of 18 gage, 7Va"deep channel joists 24"o.c.All end joints located <br /> " 7� midway between joists with all joints in each adjacent row and layer offset 24" Base <br /> s layer attached with 1"Type S-12 drywall screws 12"o.c.set back 3/a"from edges.Face <br /> �� layer attached with 15/e"Type S-12 drywall screws 12"o.c.set back 3/a"from edges. <br /> }= End joints attached to base layer with 1�/z"Type G drywall screws 12"o.c.set back 3/a" <br /> '' �'' from joint. , � <br /> i:: Approx.Ceiling Weight• 4 psf <br /> ROOF:28 gage galvanized sfeel form units'support V2""gypsum sheathing applied at Fire Test: UL NC 505-9, 12-11-80, <br /> �� right angles to units with end joints offset 24.i and fastened to units with is/s"Typ'e S Design P512 <br /> ';" drywall screws 24"o.c.in both directions.Two layers 2�/ie"glass fiber insulation board <br /> 8.5 pcf (approximate) applied paraliei to steel units. End joints of adjacent rows of <br /> _ '�"' insulation offset 16",joints between layers offset 18"on long edge and 8"on short edge. <br /> Base layer attached with 3 mechanical,fasteners per piece to steel units. Top layer <br /> secured to base layerwith hot asphalt o�cold tar pitch.Appropriate roof covering(see <br /> U.L.directory for alternate).One hour unrestrained. <br /> �. , <br /> GA FILE NO. RC��2601" � <br /> 1 °1''HOUR ' <br /> �GYPSUM BOARD, WOOD JOISTS; ROOF COVERING <br /> Base layer 5/a''type X gypsum wallboard applied at right angles to 2 x 10 wood joists <br /> 24" o.c. with 1�/a" Type S drywall screws 24" o.c. Face layer 5/e" type X gypsum <br /> \ waliboard or veneer base applied at right angles to joists through base layer with 1�/e" <br /> � Type S drywall screws 12"o.c.at joints and intermediate joists.Face layer joints offset <br /> ._\ 24"from base layer joints. 1�/2"Type G drywall screws placed 2"back on.either side <br /> of face layer end joints, 12"o.c. �/z"plywood with exterior glue applied at right angles <br /> to top of joists with 8d nails, Appropriate roof covering. Ceiling provides one hour <br /> �fire resistance protection for wood framing,including trusses. Approx.Ceiling Weight: 5 psf <br /> Fire Test: See FC 5406 <br /> , �i <br /> _ � �1 <br /> , � <br /> �` <br /> . '� 1 <br /> � � THIS SPAOIE LEFT BLANK <br /> , <br /> , �.�� � ' _ _ <br /> ,. - � - - - ; '% <br /> � a 1 _� - -., " <br /> \ � - �=- � _ <br /> . � � : - <br /> ,�`�''� q�-n'� -� - <br /> � �.,2 -_ <br /> , 1 � _ - _ . -� <br /> ' 'Contact the manufacturer for more detailed 73 <br /> information on proprietary products <br /> � <br /> � <br />