Iic Ratings For Carpet

The highest rating is iic rating 65 which includes cork flooring and carpet.

Iic ratings for carpet.

The impact insulation class iic rating is a measurement of sound transmission from the floor to a room beneath it. On top of that the manufacture of the floor covering can use different materials. An iic and stc rating will generally be 5 points higher than a f iic and f stc rating. Carpet with an nrc rating of 40 50 is the most efficient absorptive material.

Stc sound transmission class. There is a small air gap allowing to absorb more sound. The preferred level of performance for stc and iic is 60 57 f iic. As with the roberts felt however their first step foam is only suitable for laminate or engineered wood floors.

But when you compare products look beyond the number. Systems attaining ratings less than 55 stc and iic provide only marginal acoustical performance. The microbeads in the underlayment allow for maximum bounce back and circulation so no mold or mildew gets a chance to grow. This unique underlayment retains 96 of it s original thickness after 7 days compared to only 57 by leading 3 in 1 foam products.

For multi family structures some codes require an iic of 50 or more when tested in the laboratory or 45 or more when tested in the field. The quietwalk underlayment provides very high ratings such as iic of 71 and stc 66 as of mid 2018. By comparison most foam underlays will eventually compress to nearly half their original thickness. Catalog of stc and iic ratings for wall and floor ceiling assemblies california department of health services office of noise control berkeley ca 510 540 2604.

A midrange level is iic rating 60 which includes some vinyl flooring as well as wood and laminate floors. An iic rating 50 means that the flooring material has minimal sound absorption capabilities. More typical values fall between 35 and 55. It works for noise absorption and damping as well with an stc rating of 66 and an iic rating of 68.

Iic values can range from as low as 25 for lightweight residential construction with no floor covering to over 65 for commercial construction with carpet. The higher the rating the less sound gets through. Performance the selection of a floor ceiling system attaining a minimum 60 stc and iic is recommended. For iic impact insulation class ratings regarding noise for different floor products such as ceramic tile porcelain tile concrete carpet etc.

Vinyl cork and rubber have a fairly high nrc rating with hardwood bamboo tile and stone at the bottom of the scale for sound absorption.