How To Select The Best Acoustic Materials And Panels

Addressing Noise Pollution in Homes: Effective Acoustic Solutions

Noise pollution is a widespread issue that can be found in various sectors, from construction to industry. When it comes to homes, many people believe that simply using acoustic panels will solve the problem. However, the reality is a bit more complex.

Understanding Sound and Noise Propagation

First, we need to understand how sound and noise propagate, which can vary depending on the situation. Noise usually occurs due to three main causes: vibration, footsteps, or air. To address acoustic problems, it is necessary to act on acoustic waves. When these waves hit a wall, they are distributed in three different ways: one part returns to the interior of the room, another part goes beyond the affected wall, and the rest is absorbed by the wall itself in the form of energy.

Getting Started

When planning a building or addressing sound insulation problems, it’s essential to ask yourself a few questions:

What are the most suitable acoustic panels for optimal insulation?
What are the best materials?
What are the most important factors influencing design?
What type of surfaces are in the area to be managed, and what surfaces do they have?

An Important Distinction

Sound-absorbing panels are typically lightweight and have a soft tactile feel. These panels suppress echoes in larger areas such as auditoriums, conference rooms, and gymnasiums, allowing for good acoustic treatment and proper sound propagation during events or concerts. However, on their own, they are not sufficient for real sound insulation, which involves more comprehensive and structural work and design.

The Study of Materials

Another important aspect to consider when choosing acoustic interventions is the type of materials used. Sound insulation can be treated with three types of panels:

Natural: Used as they are found in nature (e.g., cork, hemp fiber, wood fibers).
Artificial: Produced with biodegradable elements.
Synthetic: Produced chemically (e.g., expanded polystyrene, expanded polyurethane).

While natural materials are recommended for environmental sustainability, synthetic materials are easier to use during installation and are more economical. They are suitable for managing footfall noise and insulating roofs and slabs.

Common Types of Acoustic Panels

Fiberglass

Typically, the best sound-absorbing panels are fiberglass panels. These panels offer excellent noise control for a wide range of applications and are available in many sizes, colors, and types to meet various design and budget needs.

Acoustic Foam

Acoustic foam prevents sound waves from bouncing off ceilings, walls, and other hard surfaces. The foam absorbs sound waves, creating an acoustically controlled environment. Acoustic foam also helps reduce noise from outside sources and prevents it from entering a building. While not soundproof, acoustic foams are effective for various activities in residential and commercial spaces and are an economical option.

Perforated wood

Wooden acoustic slat panel is the best choice for those who value sustainability. This option also allows you to highlight the style and decoration of elegant environments.

Cork

Cork is an excellent insulator for controlling airborne or structural noise pollution. Thanks to its distinctive porosity, natural cork is the best type, used without chemical treatment. It is also ideal for use at the plant level because, in addition to being an excellent acoustic insulator, it is non-deformable, waterproof, and provides good thermal insulation.