Flooring Sound Test

Sound transmission class stc is an integer rating of how well a building partition attenuates airborne sound in the usa it is widely used to rate interior partitions ceilings and floors doors windows and exterior wall configurations see astm international classification e413 and e90.

Flooring sound test.

When evaluating flooring underlayment sound deadening and acoustical ratings are one of the things homeowners or hoa considers. The data and assemblies shown are for informational purposes only and are not represented as being all inclusive correct complete or up to date. Sound absorption of floor coverings may be measured on two of those scales. Iic impact insulation class iic measures a floor ceiling assembly s resistance to the transmission of structure borne or impact noise.

It is important to understand that iic and stc tests are not for individual components of a flooring assembly but for the whole floor ceiling structure from the surface of the floor covering material in the upper unit all the way to the ceiling in the unit below. The main test done by flooring industry is the impact insulation class iic ad sound transmission class stc. Iic is measured in terms of sound impact or how well sound vibration travels through a floor to the room below. The results of the test are rated in terms of the impact insulation class iic.

Iic and stc tests are conducted in sound test laboratories. The higher the number the better the sound isolation. Some test reports and the resulting acoustical performance may be based on field tests or lab tests with small size samples please check the test report for further details.