Laserfiche WebLink
. , <br /> The following fluor/ceiling assemblies have been tested and achieved the Tire endurance rating <br /> shown for each. <br /> �� 45-MINUTEASSEMBLY RATING <br /> L 4aR9 tongue-and-groove span-rated shcalhing <br /> (Exposure I) <br /> 3 2.Single layer 5/n"thickType X gypsum board <br /> I 1 <br /> 3.TJI�joist or open-web lruss <br /> Note <br /> A single layer of 90R0 span-raled shcalhing <br /> (Exposi�rc I) over joists al 24" omcenter with <br /> I'/i' lightweight wncrete or I"of gypzum con- <br /> crete is an allowed deck,dtemative.If the joisls <br /> are spaced no mom than 20"orncenter,a �1P <br /> thick gypsum concretc to;����ing is permiltcd. <br /> A 45 minute Iloor/ceiling s�scem is not <br /> currendy used in the United Swtes. <br /> 2 <br /> REf:ITS Directory o(Listed Products:Design <br /> TJM/FCA 95-01 and DesignTJM/f"CP. 45-02 <br /> 60-MINUTE ASSEMBLY RATING <br /> ASSEMBLY A <br /> QZ I. Double wood (loor <br /> G 2.Tf I�joist or open-web truss <br /> 3. Fixture protection <br /> 4.29"x 98' recessed�ight fixture <br /> 5.Coid-rolled channels <br /> 6. 12"air dif�user <br /> 7.Thertnafber�'or Fibrex�'�PDX or <br /> Fibere�-IF mineral wool blankels <br /> �. 5/e"thick acoustical panels,29"x 29"or <br /> 29"x 48",supported by an approved <br /> exposed 6re-rated suspension system <br /> 8 7 6 5 4 3 10"minimum <br /> REf:NER-198,NGR-200,lC[l0 GS FPC-4354 <br /> I ASSEMBLY B <br /> � �(� .9fi24 tongueand-giroove span-nted <br /> shea iing (Exposure I) <br /> .T layers '/r"lhickType X gypsum board <br /> 3.TJI�joist or open-wch truss <br /> 4. Optional 3'/a" thick glass fiber batt insulation <br /> (not shown),when resilient channels are used <br /> REF: NER-198,NER-200,ICBO ES PFG9359 <br /> UL Gesign No.L518 <br /> 3 Z Resilient channels may be installed between the <br /> ^ joists and gypsum boarcl if improved STC and <br /> �„) IIC sound ratings are desired. <br /> Lightweight concrete or approved gypsum topping with appropriate sheathing can be substituted (or the decking material <br /> shown in any o(these nssernblies <br /> /�l 5 <br />�._. - — <br />