The preferred level of performance for stc and iic is 60 57 f iic.
Iic stc 60 laminate.
Iic 54 stc 53.
For use with engineered wood and laminate flooring provides cushion over concrete and wood subfloors 360 feet square roll the iic and stc tests measure sound transference from an upper level room to a lower level room.
A f iic and f stc rating.
Excellent thermal r value and reduces passive thermal loss.
Sound transmission class stc.
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.
Iic 65 considered a high level of impact sound transmission reduction that would satisfy most occupants.
Provides the highest documented performance for an underlayment less than a 1 4 thick.
The iic and stc is conducted at a controlled laboratory.
The sound absorption and reduction metrics of the roberts felt are strong with a stc rating of 66 and an iic rating of 67.
Typical floor ceiling structure stc values range from 25 to 35 for lightweight single family residential construction to upwards of 50 to 60 for commercial construction.
In most installations the underlayment needs to be adhered with a urethane adhesive and a vapor barrier would need to be included.
Provides super stability performance and durability particularly in concentrated high foot traffic areas.
Iic stc 60 superior sound proofing.
Use with engineered wood laminate.
The f iic and f stc is conducted in the field where sound is not as controllable hence the 5 point difference.
The iic measures sound such as moving furniture and walking while the stc measures sound such as voices and television.
Impact insulation class iic.
Iic stc 40 sound proofing below most codes sound transmission class from the american society for testing and materials astm e336 e413 and impact isolation class astm e492 e989 ratings are measured in decibels reduced for certain types of sound.
Iic stc 50 international building code.
Impact sound transmission the choice of floor covering can have a significant effect on the amount of impact sound transmitted from a room above to a room below.
To meet international building code both iic and stc need to meet the minimum of 50 to pass.
An iic and stc rating will generally be 5 points higher than.
Many larger luxury condo associations and municipalities are now looking at the higher 50 s and lower 60 s range.
The data and assemblies shown are for informational purposes only and are not represented as being all inclusive correct complete or up to date.
How iic is determined the iic rating is the determined by using a standard tapping machine with five steel faced hammers to strike a test floor material generating sounds between 125 hz 4000 hz.