The NRC of an acoustical material is the arithmetic average to the nearest multiple of 0.05 of its absorption coefficients at 4 one third octave bands with center frequencies of 250, 500, 1000, 2000 Hertz.

The NRC of an acoustical material is the arithmetic average to the nearest multiple of 0.05 of its absorption coefficients at 4 one third octave bands with center frequencies of 250, 500, 1000, 2000 Hertz.

Reduction of impact noise

Reduction of impact noise

Reduction of impact noise

Impact Noise Reduction

Impact Noise Reduction

Footfall Noise Reduction

Impact Noise Reduction

Reduction of structure-borne noise transmission.

Reduction of structure-borne noise transmission.

Impact noise reduction is related to a floor covering that ensures higher insulation from impact noise, in accordance with ISO 10140-5. This is defined as the reduction of impact noise pressure levels, measured in the recipient room after installation of a floor covering on a 140mm thick reinforced concrete floor.

It is very often that “just putting some rubber” to isolate structures create an inefficient or even a vibration isolation problem, without taking into account the characteristics of the whole system; such as media environment and temperature, material stiffness adjusted to the application load, surface area, material…

Noise reduction in transformers & reactors through decoupling and isolation.

Sound impact reduction

unique technical components for flooring industry with Noise Reduction Technology (NRT).

Custom tools for the power industry, focused on design and selection of joint system materials as well as noise and vibration reduction.

Custom tools for the power industry, focused on design and selection of joint system materials as well as noise and vibration reduction.

Custom tools for the power industry, focused on design and selection of joint system materials as well as noise and vibration reduction.

Noise reduction in transformers & reactors through decoupling and isolation

A free hanging sound absorbing unit used for reduction of reverberation and noise levels.

A free hanging sound absorbing unit used for reduction of reverberation and noise levels.

10 % reduction in noise transmission when compared to a standard natural stone. Improved sound absorption.

This compound is then heated, pressed into a mold and cut into sheets.   The combination of cork backing with wool felt creates a durable and acoustically absorbent wall covering system. Although there are different variations, in function of the models, the coverings register noise reduction coefficients (NRC) of up t…

Amorim multilayer panel materials are a combination of cork in selected elastomeric compound matrix to yield specific performances ranging from thermal insulation, noise reduction to fire resistance whilst maintaining the reduced surface weight, depending on the requirements of the final application.

To attenuate IIC noise in floor assemblies, a Resilient or Sound Control Underlayment is required. The correct Underlayment will provide the resilience required for code complaint IIC noise reduction and the structural stability required for a responsible flooring installation. Floating hardwood or laminate flooring ar…

To attenuate IIC noise in floor assemblies, a Resilient or Sound Control Underlayment is required. The correct Underlayment will provide the resilience required for code complaint IIC noise reduction and the structural stability required for a responsible flooring installation. Floating hardwood or laminate flooring ar…

A large-scale museum requires large-scale and effective insulation. Acousticork cork underlay and agglomerated cork and rubber underscreeds have been used for thermal insulation and reduction of impact noise. The Zeitz Museum is a magnificent structure, that offers visitors over 100 exhibition galleries spread over 10,…

Amorim multilayer panel materials are a combination of cork in selected elastomeric compound matrix to yield specific performances ranging from thermal insulation, noise reduction to fire resistance whilst maintaining the reduced surface weight, depending on the requirements of the final application. The wide applicabi…

Reduction of noise transmission can reach levels of 5 to 12dB (across the frequency range up to 5kHz) compared to conventional flooring systems and depending on the Alucork construction type. Overall when considering the soundproofing per unit of mass (dB / kg), Alucork distances itself from any system known, making it…

The NRT technology allows the flooring manufacture to take advantage of the exclusive properties of cork as part of an unique engineered multilayer structure.A natural material with incomparable insulation and shock absorption features, cork provides superior comfort, noise reduction, thermal insulation and resistance.…

Eight years ago (2009), we were thinking about what we could do better to offer to the end consumer and we found that we should offer something more quiet, comfortable and warmer. In this respect, we could provide these features by including cork in our wood floors. We thought about how to get layers to include in our…

Cork presents a wide range of benefits from the core of the bark to the outer layer. These layers are transformed into several different cork components to be part of a flooring solution with different attributes and benefits. Introducing cork in a flooring system allows to effectively reduce the total weight of the sy…

Cork presents a wide range of benefits from the core of the bark to the outer layer. These layers are transformed into several different cork components to be part of a flooring solution with different attributes and benefits. Introducing cork in a flooring system allows to effectively reduce the total weight of the sy…