acoustical-assemblies-en-SA200

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Performance TestingASTM E90Standard Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions andElements measures Sound Transmission Class (STC), the acoustical isolation provided by a barrier material or partitionassembly. This rating represents the average of the sound attenuation between two spaces at four frequencies from250 Hz to 2000 Hz.Walls and PartitionsSHEETROCK Brand Gypsum PanelsPartition Type UL Designs Framing b Max. STCMulti-Layer U419, U455 Steel/Resilient Channel 65Double-Layer U419, U454 63Single-Layer U419, U451 56Double-Layer U334 Wood/Resilient Channel 59Single-Layer U311 50USG Area Separation WallsWall Type UL Designs STC (Tested Assemblies)Solid U336 46 to 60SHEETROCK Shaft Wall SystemsNail Type UL Designs STC (Tested Range)Cavity U415 39-58Veneer Plaster SystemsFraming UL Designs STC (Tested Assemblies)Non-loadbearing Steel U411, U412, U419, 40-59U435, U448, U455Non-loadbearing U419, U423, U440, 50-63Steel/Resilient U451, U452, U453,U454Wood U305, U314 34-46Wood/Resilient U311 49-52Mineral Fiber BoardMICORE 300 BoardMICORE 160 BoardThickness STC NRC STC NRC3/8 24 .25 22 —7/16 24 .25-.30 — —1/2 25 .30-.35 24 .30-.405/8 26 .30-.35 26 .30-.403/4 28 .30-.35 26 .55-.60Notes(a) LENCORE sound masking adds the equivalent of 10 points of CAC by increasing ambient background sound by 10 dB.(b) Includes SAFB in the partition cavity.(c) Performance shown for perforated products.12 USG Acoustical Assemblies
ASTM E492Standard Test Method for Laboratory Measurement of Impact Sound Transmission Through Floor-Ceiling AssembliesUsing the Tapping Machine determines Impact Isolation Class (IIC), the ability of a floor/ceiling assembly to isolate noisefrom footsteps and other impact sources. This performance is tested using a tapping machine that impacts the floor ofa “source” room and measuring the amount of sound that comes through the ceiling of a “receiving” room locateddirectly below.Floor/Ceiling AssembliesLEVELROCK Floor UnderlaymentSound Isolation SystemFraming Sound Barrier Floor Finish IIC STCI-Joist SRM-25 Sound Carpet 77 65Reduction Mat Sheet Vinyl 55-58 60-64Ceramic Tile 54-56 60-66Wood Laminate 52-54 60-64I-Joist SRB Sound Wood Laminate 61 65Reduction Board Ceramic Tile 51 65Sheet Vinyl 54 65Truss SRM-25 Sound Carpet 73 61Reduction Mat Ceramic Tile 56 61Sheet Vinyl 55 61Truss Carpet 76 58Sheet Vinyl 48 5813 USG Acoustical Assemblies
Page 3 and 4: User’s GuideThis brochure provide
Page 5 and 6: DefinitionsLike most specialized fi
Page 7 and 8: ComponentsAcoustically-rated system
Page 9 and 10: Plaster Systems- Veneer plaster par
Page 11: Performance TestingTesting provides
Page 15 and 16: APartitionsSteel FramedNon-loadbear
Page 17 and 18: Steel FramedNon-loadbearing Acousti
Page 19 and 20: Steel FramedLoadbearing Acoustical
Page 21 and 22: Wood FramedChase Walls Acoustical P
Page 23 and 24: Shaft Wall SystemsNon-loadbearing A
Page 25 and 26: Wood FramedDimensional Lumber Acous
Page 27 and 28: Design DetailsWood FramedSound isol
Page 29 and 30: Steel FramedPartitions2 1 /2"runner
Page 31 and 32: Steel FramedCorner wall partitionSH
Page 33 and 34: Interrupting Flanking PathsResilien
Page 35 and 36: Interrupting Flanking Paths-Acousti
Page 37 and 38: Add sound insulationAdding a layer
Page 39 and 40: About the cover:ProjectWalt Disney

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