Iic Ratings For Carpet

Iic values and our floors recently we have received inquiries from builders and architects about impact noise ratings of resilient flooring over suspended concrete slabs and over lightweight concrete capped wooden subfloors in multi story.

Iic ratings for carpet.

Two leaves each face setting. When evaluating flooring underlayment sound deadening and acoustical ratings are one of the things homeowners or hoa considers. This setting is designed so that all 1 2 3 3. It is also one of the most controversial and confusing topics a homeowner strata council architect or designer will ever encounter.

Resilient flooring containing a foamed layer yields a higher better iic rating than one without it. It all begins with how sound is generated and the medium it transfers through. The single number ratings stc and 1 2 3 1. Higher end units often expect iic ratings between 55 65.

A midrange level is iic rating 60 which includes some vinyl flooring as well as wood and laminate floors. One leaf each face iic are determined in a special laboratory 1 2 3 2. 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. But when you compare products look beyond the number.

The impact creates vibrations that travel through the flooring and produce sounds on the other side. Further complicating matters is the effect that poor construction techniques may have on the field iic performance of your flooring assembly. The subfloor ceiling assembly and presence of an underlayment during testing impact the rating from one manufacturer to. The impact insulation class iic rating is a measurement of sound transmission from the floor to a room beneath it.

An iic rating 50 means that the flooring material has minimal sound absorption capabilities. The highest rating is iic rating 65 which includes cork flooring and carpet. So before asking for a product with an iic rating we need to know what the subfloor ceiling system is. Three leaves each face sound from the source room is transmitted 1 2 3 4.

Also remember that field iic ratings aiic or apparent impact insulation class per astm e1007 and lab iic ratings per astm e492 can vary. Different systems different numbers. The thicker the system the better the iic rating. The main test done by flooring industry is the impact insulation class iic ad sound transmission class stc.

As you can see the choice of subfloor ceiling system combined with the type of flooring structure has a major affect on the value of the impact sound.