Stc And Iic Ratings For Wall And Floor Ceiling Assemblies

Transmission the passage of sound waves from its source through a vibrating medium and to a listener.

Stc and iic ratings for wall and floor ceiling assemblies.

35 39 stc and 32 iic 66 w c p. Airborne sound passes through a space by vibrating the air. Sound ratings gypsum board assemblies are laboratory tested to establish their sound insulation characteristics. Astm e90 standard test.

Impact noise tested on floor ceiling systems only is reported as the impact insulation class iic. Figure 3 insulating wall cavities noticeably improves sound transmission loss by providingbetween one wall surface and the other cavity absorption. Airborne sound insulation is reported as the sound transmission class stc. Toughrock shaftliner or densglass shaftliner panel inserted between 2 1 2 floor and ceiling j runners with h section of 2 1 2.

Walls and both airborne and impact sound insulation for floor ceiling assemblies. Partitions and floor ceiling assemblies constructed in accordance with the diagrams shown herein are considered to have sound transmission class stc ratings and impact insulation class iic ratings of 50 as shown. Class stc side to the other. Structure borne sound travels through wall partitions ceilings and floor ceiling assemblies.

Catalog of stc and iic ratings for wall and floor ceiling assemblies russell b. Search for georgia pacific assemblies by selecting an assembly type hourly rating stc rating or product type above or type part of a assembly name. Faced concrete block wall floor and ceiling assemblies solid wood floor joist assemblies wood i joist assemblies wood truss assemblies steel joist floors.