b'Fire Rated AssembliesFloor/Ceiling AssembliescontinuedRating Detail UL/GA # Description Sound Rating1 hr. M502 Resilient channels attached 12"o/c perpendicular to bottom of wood I-joists,n/aFC 5505 with two layers 5/8 FireBloc Type C wallboard applied at right angles to the channels. No limit on overall thickness of berglass, loose ll or mineral wool insulation allowed when applied directly over gypsum board.1 hr. M502 RSIC-1soundisolationclipsand7/8hatchannelattached16o/cSTC 62FC 5504 perpendicular to bottom of wood I-joists, with two layers 5/8 FireBloc TypeIIC 56C wallboard applied at right angles to the channels. No limit on overall(vinyl)thickness of berglass, loose ll or mineral wool insulation allowed when applied directly over gypsum board. Sound tested with 3-1/2 berglass(ITS E6968.08-113-11R1)insulation and various ooring options.STC 61IIC 58(laminate)(ITS E6968.09-113-11R1)STC 60IIC76(C&P)(ITS E6968.10-113-11R1)STC 62IIC 53(ceramic tile)(ITS E6968.11-113-11R1)1 hr. M531 Resilient channels attached 12"o/c perpendicular to bottom of nominal 2 xn/aFC 5508.1 10 wood joists, with one layer 5/8 FireBloc Type X wallboard applied at rightanglestothechannels.Minimum1/2proprietarygypsumoor topping applied over suboor. No limit on overall thickness of berglass insulation, loose ll or mineral wool insulation allowed when applied directly over gypsum board.2 hr. M510 Two layers 5/8 FireBloc Type C attached perpendicular to wood trusses spaced 24o/c. Resilient furring channels are then attached at right angles ton/aFC 5753 trusses 16o/c, with one additional layer of 5/8 FireBloc Type C wallboard applied perpendicular to the furring channels. Several oor systems are available, and there is no limit on overall thickness of berglass insulation, loose ll or mineral wool insulation allowed when applied directly over gypsum board.1 hr. G560 Resilient channels attached at 12o/c to bottom of minimum 9-1/4 metaln/aFC 1147 C-Joists (54 mil) with one layer of5/8 FireBloc Type C wallboard applied at right angles to channels. Joists supporting 9/16 deep 22 ga. corrugated steel deck and gypsum oor topping, with minimum 3-1/2 berglass or mineral wool insulation draped over the channels.1 hr. G567 Resilient channels attached at 12o/c to bottom of light gauge steel trussesn/aFC 1190 spaced 48o/c, with one layer of5/8 FireBloc Type C wallboard applied at rightanglestochannels.Trussessupporting3/8metalriblathand minimum 2 normal weight or lightweight concrete, and no limit on overall thickness of berglass insulation, loose ll or mineral wool insulation.'