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11/14f2065 22:46 ?635352746 BRUCE LEHRER PAGE 09111 <br /> SXUV,LS39-�ire Resistance Ratings-pNS1/UI,263 http://datab�se.ni.com/cgi-b' /tennplate/LISEXT/1FRAME/sh... <br /> 2. Wood Jo�sts--Mi.n 2 by 10,spaced 16 in.4C and effectively reblocked in <br /> accordance with local cades. <br /> �. Crasa Bridging�--•Min 1 by 3 in.or min 2 by 10 solid blocking <br /> 4.Batt�and Blankets�--Any glass fiber or mineral fiber batt 'a1 bearing <br /> the UL Ciassification Mazking as to Fire Resistance.Nom 3-5/8 in.thick g�ass fiber <br /> bat�s baving a min density of 0.6 pcf friction-fitted between joists o underside of <br /> subfloor. When unfac�i batts aze used,batts secured in place with 1 retainer <br /> wir�s cansisting of nomina123-3/8 in, lengths of 0.485 in.diameter steel wire with <br /> "toothed"ends. Ret�iner wires pressed into joist cavity,against und ide of <br /> u�sul�ion, spanning between and biring i�tto the jaists on both ends Retainer wires <br /> spaced raax 12 in.OC.When faced i�atts arre used, batts secured to j ists�on both <br /> sides with staples spaced max 1�in. QC, <br /> See B�tts and B1Ankets(BZJZ)cat�gory for names of manufactur� . <br /> 5. Rafters--Nom 2 by 6 in.,spaced max 24 in. OC,bridged la ly with solid <br /> blocking max 7 ft OC. <br /> SA. Structural Steel Mcmber�-(Not Shown)---As an atternate o Item 5,light <br /> gauge steel truss syste�m manufactured f�rom cold-formed,galvaaiz steel chord <br /> and web members confornung to ASTM A653 Grade 33 or higher eld strength. <br /> Steel thickness of truss ohords shail be min No. 1$MSG and web ions a min <br /> � No.20 MSG. Truss members weided together.Truss chord and web members to be <br /> designed in accordance with the American Iron aad Steet Institute's pecihcation <br /> for the Design of Co1d-Formed Steel Structural Members,most c nt edition. <br /> Trusses shall have a min depth of 8 in. and b�spaced a max of 24 in OC.Where <br /> the truss intersects with the iuterior face of the e�riar wa�l,the min truss depth <br /> shatl be 12 in. with no min slope. <br /> 6.Sheathing-(Optional}--RaRers may be sheathed with plyw gypsum <br /> boatd(Item 7)or Mineral and Fiber Boards*. When piywood is used, <br /> solid blocking far rafters may be omitted. <br /> See Minerrnll and Fiber Boards(CERZ}category far names of man acturers. <br /> 7. Gypsum Baard*--Nom 5/8 ia. thick,4 ft wide gypsum board i ed with <br /> long dimension perpeadicular to rafters with end joints located under bottom of <br /> rafters. End joints in adjacent mws shall be stagg�ered on adjacent joi . Gypsum <br /> board secured with 1•�/8 in. long 6d cement coated coolsr nails or 1- /8 in, long <br /> No.6 Type S bugle head steel screws, spaced 7 in.OC along the ed s and in the <br /> field. <br /> AMEItiCAN GYPSUM CO--Types AG-C. <br /> BPB ANIERICA INC—Type FRPe,ProRoc Type C. <br />