Carpet Noise Reduction Coefficient

This is more conceptual than physically achievable.

Carpet noise reduction coefficient.

Even very thick concrete walls will attenuate sound and may. Typically the nrc rating of a material is viewed as a percentage. The nrc is the percentage of sound that a surface absorbs in other words hits a surface and doesn t reflect back again into the room. Nrc stands for noise reduction coefficient and is the standard rating for how well a material absorbs sound.

Fact sheet carpeted result in a reduction in noise of over 20 decibels table 1 noise reduction coefficients nrc material noise reduction coefficient approximate carpet with underlay 0 65. Carpet vinyl cork rubber and other types of resilient flooring have higher nrc ratings than hard unforgiving surfaces such as tile stone hardwood and bamboo flooring. Even so no flooring material can provide all of the necessary acoustical management within a space. Noise is defined as an unwanted sound judged as loud disruptive or unpleasant it can impact a resident s experience disrupt a classroom or result in communication errors in a healthcare setting.

Carpet is quieter than hardwood. Nrc noise reduction coefficient measures the amount of noise absorbed by the material and not reflected. Carpet has a noise reduction coefficient of 40 to 50 much higher than hardwood s 40 to 50. Flooring for sound reduction carpet.

Theaters for example are constructed with a high nrc rating in mind. Nrc ratings of common room finishes are provided in table 1. The prices vary depending on the model and square feet you need to cover so a phone call is recommended to suit your. At patcraft we understand how sound affects environments and have conducted industry leading acoustical testing on our carpet and resilient products which can help you select the correct flooring.

The noise reduction coefficient commonly abbreviated nrc is a single number value ranging from 0 0 1 0 that describes the average sound absorption performance of a material an nrc of 0 0 indicates the object does not attenuate mid frequency sounds but rather reflects sound energy. Flooring are the product s sound absorption and noise reduction capabilities. Carpet having an. So a carpet on rubber underlay could easily have an.

Number one on the on all counts is. For example an nrc rating of 75 means 75 of the sound energy. The noise reduction coefficient of flooring is how much noise is absorbed into the floor material rather than how much is being reflected by it. Nrc noise reduction coefficient measures how well materials stop sound from reflecting how much sound they can absorb.

If the carpet is installed with an underlay its nrc rating will almost double. Independent laboratory tests show that carpet and textile composite flooring control noise more effectively than any other floor covering. Carpet is a softer surface which means it absorbs noise while hardwood reflects it that noise of course being footsteps. A room with a high nrc rating eliminates background noise and echoes to help clarify speech.

There s no getting around it.