Hi vik thanks for reaching out.
Iic rating of cork flooring.
Other resilient floors such as vinyl cork and rubber have slight give which cushions blows and also helps to increase the iic rating.
Cork underlayment is the best choice for soundproofing for kinds of floor laminate flooring hardwood flooring etc.
Insulation ratings for flooring what s behind the numbers the more multifamily unit houses that are built the more important acoustic testing insulation ratings sound ratings becomes.
The iic and stc is conducted at a controlled laboratory.
The quietwalk underlayment provides very high ratings such as iic of 71 and stc 66 as of mid 2018.
From our collection we would recommend floor muffler lvt ultraseal flooring underlayment which is made for vinyl and has an iic 71 rating.
Generally an iic rating of 50 will satisfy the building code requirements.
On top of that the manufacture of the floor covering can use different materials.
The delta iic rating for 12mm cork underlay 22 db all by itself.
A midrange level is iic rating 60 which includes some vinyl flooring as well as wood and laminate floors.
We know hoa s can be pretty strict so we recommend finding an underlayment that is made specifically for vinyl flooring with an iic rating of 71.
That means the 6mm cork 11mm floating cork floor better than good for acoustic ratings.
An iic rating 50 means that the flooring material has minimal sound absorption capabilities.
All ratings are not equal as with any underlayment sound testing number that a company gives you each subfloor or floor assembly in your home.
It is also one of the most controversial and confusing topics a homeowner strata council architect or designer will ever encounter.
The preferred level of performance for stc and iic is 60 57 f iic.
A f iic and f stc rating.
Iic is measured in terms of sound impact or how well sound vibration travels through a floor to the room below.
The f iic and f stc is conducted in the field where sound is not as controllable hence the 5 point difference.
It is possible that an 11mm cork floating floor on top of the 12mm cork underlay can score a rating of 28 db roughly.
In addition floating floors such as hardwood or bamboo installed over a resilient underlayment also helps to increase the iic rating of the finished floor.
Iic impact insulation class iic measures a floor ceiling assembly s resistance to the transmission of structure borne or impact noise.
Meet sound insulation iic and stc ratings.