Using mineral wool for sound insulation

Insulation is essential for designing a comfortable living area. It can lessen noise pollution in addition to keeping your house cool in the summer and warm in the winter. Mineral wool insulation may be the answer you’ve been looking for if you want to soundproof your house effectively.

Mineral wool, which can be made from synthetic or natural minerals like slag or rock, is a useful and efficient insulating material. There are two primary forms available: loose-fill and batts. While loose-fill insulation is composed of tiny particles that can be blown into cracks and difficult-to-reach areas, batts are large, flexible panels that can be easily cut to fit into walls, floors, and ceilings. Because both varieties of mineral wool are so good at absorbing sound, they are perfect for usage in residential and commercial settings.

The ability of mineral wool insulation to lessen noise transmission between floors and rooms is one of its primary benefits. Mineral wool can reduce noise transmission from one area of your house to another, resulting in a calmer and more serene living space. This is because it absorbs sound vibrations. Mineral wool insulation can help whether you’re trying to create a private home office space, reduce upstairs foot noise, or block out traffic noise.

Mineral wool insulation not only reduces noise but also provides superior thermal insulation that keeps your house cool in the summer and warm in the winter. This can lower your energy costs and improve the comfort level in your house all year long. Furthermore, mineral wool is non-combustible, which means that in the event of a fire, it won’t catch fire or help the flames spread, giving you and your family an extra degree of safety and protection.

Benefits Mineral wool effectively reduces noise transmission, creating a quieter and more comfortable indoor environment.
Installation Mineral wool is easy to install and can be placed between wall studs, ceiling joists, or floor joists.

Sound insulation using mineral wool

Since it was established that mineral wool’s porous structure could effectively delay sound waves, the material has been widely used for soundproofing.

Although basalt boards and glass wool are frequently utilized, slag-based products and ecowool can also be used successfully.

Application options

The following are some applications for mineral wool as a sound insulator:

  • Installation from the outer surface of the wall (installation under plaster and as a hinged layer under siding).
  • Placement on the inside of walls under the facing material (including under the floor, ceiling, on plasterboard walls).
  • Location in the internal cavities of framed walls.
  • Installation in places where engineering equipment, pipes and other structures that cause significant sound vibrations are located.
  • Installation of a soundproofing layer under the roof.

Take note! Different kinds of noise-absorbing materials are better suited for different situations. It is imperative that you become acquainted with the primary technical specifications of soundproof mats and boards.

Types of mineral wool for noise insulation

In addition to sound conductivity, mineral wools can vary greatly in other aspects as well. The ultimate cost of the material will depend on how difficult it is to obtain as well as the kind of substance used and whether or not certain qualities are present.

By material of manufacture

The type of material used to make sound-absorbing mineral wool will depend on the available raw materials. Wools based on basalt fiber are the most widely used noise insulators.


Because natural raw materials are used in the production of basalt wool, it is an environmentally friendly material.

The following are a few of this insulator’s primary benefits:

  • Low thermal conductivity.
  • No hygroscopicity.
  • Fire safety.
  • Extremely low sound conductivity.
  • Good vapor transmission.

Furthermore, handling this material is safer than working with glass wool.


For many years, fiberglass has been used as a sound and heat insulator. This material’s primary benefit over others is its inexpensive cost.

There are further benefits:

  • Low thermal and acoustic conductivity.
  • Resistant to open fire and high temperatures.
  • Low weight.

Take note! Glass wool’s primary drawbacks are its propensity to absorb moisture and the requirement that workers wear personal protective equipment when performing tasks.


Due to its metallurgical waste origin, slag wool is another term for low-cost materials.

The following qualities of this material account for its widespread use as a soundproofing agent:

  • Low level of conductivity of sound vibrations.
  • Easy to install on almost any surface.
  • Biological resistance.
  • Long service life.

This material has excellent thermal insulation properties in addition to good sound absorption.

Take note! The presence of hazardous binders in the composition of slag wool is its primary drawback.


Waste paper is combined with flame retardants and antiseptics to create Ekovata. Although its primary use is for thermal insulation, this material also works well for sound absorption because of its loose structure.

  • Low cost.
  • Ability to mount on surfaces of any shape.

Take note! However, ecowool has drawbacks, like a significant fire risk and shrinking with extended use.

By density

The density of acoustic mineral wool can vary greatly. It will determine the material’s thickness and sound conductivity coefficient.


The best material to absorb noise is soundproofing mineral wool, which has a minimum weight value. When using mineral material, the more friable structure also works well as an excellent heat insulator.

These products are lightweight and simple to install without the need for specialized tools. Sadly, this is where the benefits of using this kind of soundproofing material stop. Installing a sturdy frame is essential because lighter wool will be less robust, particularly when using sprayed varieties.


There are also unquestionable benefits to rigid mineral wool, even though its noise insulation is much lower than that of lightweight items of this kind:

  • Small thickness.
  • Ease of installation.
  • Higher durability.

When applying sound-absorbing material to a room’s interior walls in an apartment or private home, the material’s thickness matters.

When compared to lightweight mineral wool, the usable volume of the room will be somewhat smaller in this instance. Eliminating the need for a frame installation makes installation easier and allows for significant time and cost savings.

A great material for sound absorption in your house is mineral wool. It not only successfully attenuates outside noise but also aids in sound absorption inside your house, resulting in a calmer and more serene atmosphere. Mineral wool is a fire-resistant, long-lasting material made from natural resources like rock or slag. It is also environmentally friendly. Mineral wool is an affordable and effective way to soundproof your walls, floors, or ceilings, and it can greatly enhance the acoustic comfort of your house.

How to choose and use

Minwool as soundproofing is only effective when the right material is chosen. When purchasing this kind of sound insulator, keep the following things in mind:

  • Mineral wool used for soundproofing must be properly stored: under a canopy, protected from the effects of precipitation, even if there is a sealed package.
  • It is recommended to purchase only well-known brands of wool.
  • Any damage to the packaging is unacceptable.

When transporting minwool for use as wall noise insulation, care must be taken to prevent moisture or mechanical impact from damaging the material’s structure.

How to achieve quality sound absorption

Installation of minwool used for soundproofing needs to be done properly. Installing in a way that minimizes gaps between the jointed sections is advised to maximize results. Ecowool sprayed is the best option, but if you use other options, you can still achieve the same results by tightly installing the plate or roll material in a frame designed specifically for sound insulation installation.

Is it possible to use acoustic mineral wool as insulation?

Although practically all of the materials on the list have a low coefficient of thermal conductivity, stone wool is an excellent sound insulator. This allows for the accomplishment of two goals at once: keeping the space warm in the winter and cool in the summer while shielding it from unwanted noise.

Take note! It is sufficient to use a regular thermal insulator if the primary goal is to insulate a room, as some mineral wool varieties intended for soundproofing can be expensive.

The best wool for soundproofing walls

Selecting the best acoustic rock wool is the primary task when purchasing it. Purchasing materials from reputable producers is a win-win tactic, as an example:

  • Rockwool "Acoustic Butts" – board sound insulator, which has excellent noise absorption characteristics with a density of only 45 kg/m3.
  • Technonikol "Technoacoustic" – this material is inexpensive, but has good sound and heat insulation characteristics.
  • Knauf acoustic board – easy to install material that does not burn and does not contain harmful dopes. components.

The materials on the list are most frequently used in acoustics and are available almost anywhere specialty stores are sold.

A good way to insulate your home from noise is with mineral wool. It is a well-liked option for lowering noise transmission between rooms and floors because of its capacity to absorb sound waves. Mineral wool can help, whether your problem is noisy neighbors, traffic on the street, or you simply want a calmer, more serene atmosphere inside your home.

The adaptability of mineral wool is one of its main benefits. It is suitable for use on walls, floors, and ceilings in your house. With this flexibility, you can provide specialized solutions for your acoustic needs by focusing on particular regions where sound transmission is an issue.

Mineral wool is a practical choice for both new construction and renovation projects because it is also simple to install. The overall comfort and tranquility of your living space can be enhanced with proper installation, which can dramatically lower the amount of noise entering or leaving a room.

All things considered, mineral wool provides a practical and economical means of enhancing your home’s sound insulation. Selecting this adaptable and simple-to-install material will allow you to live in a more comfortable and quiet space for many years to come.

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Sergey Ivanov

I like to help people create comfort and comfort in their homes. I share my experience and knowledge in articles so that you can make the right choice of a heating and insulation system for your home.

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