The Best Insulation For Soundproofing: How To Choose

Published Mar 19, 22
23 min read

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5 Best Types Of Insulation For Soundproofing (2022)

A ceiling soundproofing is a great way to keep outside noise from entering your home. Soundproofing a ceiling is also an easy project, and it's relatively inexpensive. This project can use a variety of soundproofing materials, including foam tiles and acoustic panels. Here are some tips for how to properly install these products.

Best Soundproof Insulation Materials

There are many different types of soundproof insulation materials that can be used to help insulate your home or office. But not all soundproof insulation materials are equal. Some might be better at blocking out sound than others, while some could be more costly than others.

Noise pollution can be a problem in many places around the globe.

This mineral wool fiberglass blown in cellulose spray foam insulation foamboard is a great option for your home. It can soundproof and retain heat, as well as protecting walls from moisture damage.

We are exposed to thousands upon thousands of noises every day in our homes. Acoustic insulation materials can help improve our comfort.

Airborne sounds are sound waves which travel through the air. Flanking noises travel along walls, ceilings, floors, and under walls. It is often difficult to stop them and can take time.

Basics of Sound Transmission

Sound is a wave of pressure that travels through the air. It is a sound that can be heard but not felt. The wavelength of sound waves (the size and span of the waves ).).

The distance between crests determines how much sound waves travel through the air. Sound waves can be heard between 17 mm to 17 meters. In addition to the distance between the two speakers, there are other factors that determine how loud they will sound. The larger the room, and the more people in it, the lower their volume.

Frequency can be measured in Hertz. The Hertz measure frequency.

You can control sound waves by using materials that absorb or block them being transmitted. Many insulation materials are available, such as fiberglass, foam and paper. Different insulation materials can absorb different types of sound waves. Fiberglass, for instance, absorbs sound waves better that other materials due to its density.

An average home with 40dB will be quiet. On the other hand, a noisy home will have more than 100dB. Higher numbers will make the material more effective.

Considerations for Your Home

A quiet home should have a higher rating than STC40. STC 56 should be used for bathrooms and living rooms. STC 60 should apply to bathrooms and living spaces. STC33 applies to walls that are 2x4 but have 1/2" of drywall.

Insulation Noise Reduction

Before you start construction, soundproof your home. This involves adding more layers to the drywall so that the sound waves are absorbed by the walls. If you're just beginning a construction project and don't know how to soundproof your home, we can give you some great tips.
There are many ways to ensure you have a high-quality soundproofing job. What is sound insulation? Because it reduces noise and unwanted vibrations, sound insulation is an important part of any home or building. Low soundproofing can make it difficult to hear the vibrations of running motors, fan blades, and other vibrating appliances like air conditioners or fans.
Sound Dampening

Acoustic insulation is 80. Acoustic insulation is 80.

Insulation improves the value and energy efficiency of your home. Drywall reduces noise in your home.

Drywall is held up by steel bolts. Sound insulation levels can be increased by 49% by using 5/8".

Types Of Soundproofing

Two types of soundproofing products dominate the market: fiberglass and drywall. Although drywall is mainly used in older homes it can still be a great choice for homeowners who wish to improve their home's energy efficiency. Fiberglass insulation is much more popular these days because of its ability to reduce noise levels and also improve energy efficiency.

Insulation can come in two types: acoustic and mechanical. The mechanical insulation can be foam, metal beams, metal studs, or other materials that are placed in walls or ceilings. They absorb sound waves from the environment and prevent vibrations reaching sensitive areas, such as floors and windowsills. It sounds easy enough, just add insulation! What is the best type of insulation?

Use sound-absorbing materials to make walls, ceilings or floors more quiet. Light and porous, they trap sound waves.

Sound blockers are thick, heavy materials that reflect sound waves and stop them from entering or exiting spaces. They transmit less noise.

To reduce noise transfer from different rooms, isolation walls are used. Double-studs prevent sound from being transferred between rooms. Clips are used for isolating walls from one another.

Different Types Of Insulation

A strong, porous material that can be used for insulation. Absorbs vibrations and sounds from airborne sources.

Fiberglass insulation is used to insulate houses.

Sound Control Foam Insulation is a type of polyurethane foam spray foam that is applied to walls to insulate a space. It has a high level of soundproofing and can reduce noise by as much as 90%

Extruded plasticstyrene may be used to create both blue and red foam boards. ISO panels are more efficient insulation than either the blue or pink foam board.

A polystyrene sheet helps to reduce noise in a space.

Fiberglass insulation

Which insulation is best? It all depends on what you are looking for in a home, how much money you have available and what features you need. It also depends on what noise-reducing products are available for sale at this time. Soundproofing has become more competitive because companies are trying to create better products than their competitors. Material costs have dropped, meaning that manufacturers can use less material while still producing high-quality products.

Electronic Sound Absorption and Cancellation Systems (ESAC systems) work by converting electrical energy to acoustic. This energy is transmitted through walls, ceilings, or directly onto the originating audio source.

Fiberglass insulation is made from melting plastic and spinning the strands into long strands. Fiberglass insulation insulates homes by retaining heat in winter and allowing cold air to escape.

A thicker batt can decrease the STC by approximately 1 point. This could be because sound waves travel further when batts have a thicker shell. Additionally, sound waves are reflected back to the source more often, increasing overall STC.

Fiberglass insulation's flexibility is limited. Fiberglass insulation has an NRC rating 0.85. R11 is 0.95 and R19 is 1.

Fiberglass insulation keeps heat inside your home at a very high level.

Fiberglass Batts can insulate walls ceilings and roofs. Rigid batts can also be used around ductwork and walls to reduce noise transmission and echos.

Owens Corning has a pink, unfaced insulation roll measuring 23" x39", that can be used between beams, truss and studs. It adds 6 inches of insulation and has an R19 value. However, it can be mold and moisture-sensitive. If not compressed, it can improve sound absorption on floors and walls.

Owens-Corning 703 is a lightweight acoustic insulator that can be used in ceilings and walls. The insulation should be covered with acoustical fabric to keep the fibers from fluttering.

Owens Corning 2" thick Soundproofing Insulations have a density 10.3 lbs/ft3 with an added STC of 18. It enhances the overall sound.

MultiPurpose transmission classes (STCs) up to 53 It has an insulation value of 1.0. It is better at higher frequencies than lower ones. However, low-frequency noises are still a concern.

Mineral Wool

Mineral wool insulation is made of many different types. It is extremely strong and durable. It is also water, fire, and moisture resistant. It is also sound-proof. It is dense at 8.5 pounds per square foot.

Mineral wool insulation has a stronger structure and density than fiberglas. It's less likely that mineral wool insulation will slouch than fiberglas and has a stiffer structure. This also blocks sound transmission.

Acoustic tiles reduce noise and echo.

Batt Insulation

Batt insulation wraps around a wall. There are many thicknesses of batt insulation, depending on how big your space is.

This batt insulation can be used straight away. It could also have an effect on the product’s ability to soundproof or act like a thermal barrier.

Batt insulation is made out of fiber glass. It's tough. Fiberglass can be used to make batt insulation.

Mineral wool insulation has a reputation for being easy to put in and affordable.

Foam Spray Insulation

Polyurethane foam spray works well for insulation in odd-shaped areas but is mostly used to insulate attics that are not finished.

Liquid insulation can be applied to walls or floors by spraying.

Liquid foam insulation does not provide fireproofing but it does offer thermal resistance.


When it is poured, blown insulation looks almost identical to spray foam. Blown insulation is a great option for attic floors with uneven surfaces or unfinished attics. The material may spill out and it won't work in new wall construction.

Blown insulation is an insulation material used to insulate homes. It typically contains fibers such rock wool, glass wool, or mineral wool. This type of insulation can be found in attics and crawl spaces as well as walls and roofs. It can be used to insulate pipes, ducts, and other areas.

Roxul Rockwool Acoustical Mineral Wool Insulation

Many different manufacturers use rockwool for soundproofing. It is available as 48" x 24-inch panels. It is used to cover gaps between ceilings or walls. You can make bass traps or acoustic panel using it.

You can get six-pound units if rock wool insulation acoustic wool insulation.

Rockwool, a type of fiberglass insulation, is used in building construction.

Rockwool is a high-quality insulation. It's fireproof and waterproof.

Acoustimac Eco Cellulose Insulation

This ecocellulose insulation makes a great selection.

This material is made out of recycled materials.

These panels are ideal for protecting your home and office from high-frequency sounds, such as sirens, explosions, gunshots, and sirens. If you are close to windows or other openings, you will hear them better. However, they will not protect you against low-frequency noises like car engines or footsteps.

Insulations' fire rating to is Class B.

Foam It Green Spray foam Insulation

This foam insulation product is for sealing and insuring small areas. Spray takes less than 5 minutes.

Insulates and seals away air. A thickness of 1" is the insulation. The following are also included:

The 15 foot hose has 10 nozzles and fan spray tips. Your application gun is yellow and blue.

The foam can be used for insulation. To insulate hollow walls and doors, you should use a slower-rising foam.

How do you install soundproof insulation?

Mineral Wool vs Fiberglass Insulation Boots

Although fiberglass batts tend to be more expensive, mineral wool batts have much higher efficiency. Fiberglass can be less cost-effective, but they absorb more sound.

Mineral Wool Panels vs Fiberglass Panels

Panels made of mineral wool can have an STC range of 45 to 52 with an NRR of 0.95 to 0.99. Both can be used to absorb sound and reverberations.

Cellulose and Fiberglass Batts or Panels

Bats are mammals that fly around looking out for insects.

Cellulose vs Roxul Rockwool

Cellulose, a kind of fiber, is composed of long chains containing sugar molecules. They have an NRF rating rating rating of 1.1. This makes them an excellent sound absorber.

Cellulose vs. Spray Foam

Cellulose comes in a range of STPs from 44 to 68 and an NPR of 0.8 to 0.99.

Roxul Rockboard panels vs Rigid Foam

Rigid foam is used in the manufacture of insulation, soundproofing materials, acoustic panels, and other products. It is created by pouring liquid urethane into molds. Because it has many long chains of molecules, it is rigid. Foam, also known by the name cellular plastic is often light gray or white. It is used for insulation of walls, ceilings and roofs. It absorbs sound.

Roxul Rockboards are excellent for absorbing sound and reverberation. They can also absorb noise and echos.

Soundproofing insulation

Noise can distract from work and cause distractions.

It doesn't absorb heat and cold so it is ideal for soundproofing houses. Some people believe it will increase the home's worth.

Move Electrical Boxes

Make sure that electrical boxes can be separated by only one wall stud. This will allow you to later use the 5/8-inch and 1/2-inch resilient drywall.

Make your boxes as accessible as you can.

Seal the Boxes

Electrical boxes sealed with Acoustic sealants should be used. Silicone caulks should be used to seal cracks in the walls.

Insulate The Walls

Fiberglass balls must be placed inside cavities. Safety glasses, masks, gloves and eye protection should be used when cutting fiberglass.


Doors need to have high Sound Transmission Class ratings. But, it is possible to lose some of its benefits if you spend too long insulating walls.

Solid core wooden doors have a STC of approximately 28. Acoustic wood doors have an STC between 30- and 50. It is best to find a supplier that specializes in commercial construction.


Acoustic panels or acoustic boards can be used for sound absorption. To achieve better acoustics, it is important to properly install these panels.

Soundproofing is an important component of any building or room. Each material has unique properties so you need to be careful when planning your project. A combination of all soundproofing techniques can give you better results than one or two.

Acoustical soundproofing is an essential aspect of any building. Some insulations can be better than others.

Insulation made of mineral wool

The mineral wool is made of either rock or glass fibers. Resistant to fires, it does not absorb water.

Cellulose Insulation

Its low density makes it easy to cut and place. It is very lightweight and does not add weight to walls. Cellulose insulation has a high R value of approximately 4 per inch (R-4) when installed as batts or panels. It is suitable for use in attics and walls as well as ceilings and walls of homes and buildings.
Cellulose insulation has a high soundproofing property. It doesn't absorb heat, cold or noise and absorbs it well. Cellulose insulation comes from recycled paper products like newspapers and cardboard boxes. The fibers are then made into strands that are then compressed into pellets. This creates cellulose fiberglass, which can be molded to any shape.

Cellulose insulation are plant fibers that are used in wall cavities. Their ability to trap noise and air makes them more effective in noise insulation.

Finest Soundproof Insulation Products With the list in hand, I took a better look at the different kinds and what they do. If you desire to understand more about any of these options keep reading as I offer my insight right into every solitary one.

They can be airborne, influence or lateral noises - Soundproofing The kind of noise as well as its regularity variety are the variables that trouble us. Our hearing variety is between 20 and 20,000 Hz, and also it's most conscious audios in the 1000 Hz array. Audio insulation can aid improve our comfort and even our health and wellness.

Audio waves can travel with ductwork, over or under the most effective soundproof wall surface, and via hollow core doors. Audio can also move with back to back electrical boxes! Recognizing the Fundamentals of Sound Transmission Audio travels with the air in various wavelengths. Wavelengths are determined from crest to crest or trough to trough and represent different noises.

5 Best Types Of Insulation For Soundproofing (2022)

The farther apart the crests the lower the regularity and the closer with each other the greater the regularity. Wavelengths we can hear are between 0. 67 of an inch (17mm) as well as 55. 77-feet (17m). Frequency is gauged in Hertz (Hz) and stands for the tone (regularity) or musical value of a noise.

Pitch is the audio regularity produced, and also the tone is the regularity we listen to - When a sound wave encounters a wall surface or items it could be taken in, reflected, refracted, diffused or diffracted, or transmitted.

The residential or commercial properties of different insulation material allow it to take in noise or lower its transmission via that product. How loud a noise is, is determined in decibels or d, B on a sound stress range - Soundproofing - 0d, B is the start of what we can listen to, and 130d, B will certainly create physical discomfort.

The Best Insulation For Soundproofing: How To Stop Noise From Entering Or Leaving Your Home

Understanding STC and STC Scores is an approach of comparing exactly how well windows, doors, floorings, walls and also ceilings are at lowering sound transmission. It gauges the decibel (d, B) decrease as audio passes through or is absorbed or blocked by product or wall.

The results are graphed as well as create a contour. Your contour is contrasted to a set of basic STC referral contours. The recommendation curve closest to your curve is your ranking. The greater the STC rating, the far better the wall surface or product goes to obstructing or reducing the noise transmission of the frequencies checked.

The difference in audio transmission results is graphed as well as contrasted to a typical set of curves. Recommended STCs for Your House A quiet residence has an STC 40 score.

Which Is The Best Insulation For Soundproofing? A Comprehensive Guide

For property locations, an STC 52 for bedrooms and also STC 56 for bathrooms, living areas and kitchen areas, are advised minimums. A 24 wall surface with" of drywall on both sides, however no insulation, has an STC 33 rating. NRC (Sound Reduction Coefficient) The Noise Reduction Coefficient (NRC) gauges the quantity of noise a product takes in or mirrors on a scale of 0 to 1.

The NRC is typically detailed as a portion based on its decimal. Drywall with paint on it has an NRC rating of 0.

SAA (Audio Absorption Average) The SAA is a sound absorption average with a score similar to the NRC ( As opposed to 4 frequencies though, it uses 12 one-third octave bands in the 200Hz to the 2500Hz array. It is presented as a value between 0 and 1, with 1 being 100% absorption of audio.

What Is The Best Insulation For Soundproofing?

01 increment. SAA and also NRC can accomplish worths more than 1. 00 if the product being evaluated has big air spaces or is thicker than normal. When developing, developing or refurbishing a structure, or ending up a basement, it is necessary to consist of soundproofing in your wall surfaces as well as ceilings. There are 3 ways to decrease or stop the sound transmission with walls at the time of building and construction.

Requirement insulation products absorbs some sound, and acoustic insulation absorbs more ( The insulation will lower sound transmission with the wall surface, as well as additionally boost the noise within a space.

Including sound ranked insulation can boost that to. Building the very same wall surface using 2-1/2" metal studs with 1/2" drywall on each side you obtain an; include exact same audio ranked insulation can bring the ranking to. Making use of 5/8" drywall rather of 1/2" on the steel studs brings the sound protected wall surface approximately.

Which Type Of Insulation Is The Best For Soundproofing?

Sound damping minimizes or stops vibrations from traveling via wall surfaces, so they can't transfer noise, or as much noise, into various other living spaces. Is a construction approach that decouples or separates one wall surface face or side from the various other or the drywall from the framework (Soundproofing Staggered or double stud framing, using isolation clips or channels, are methods of reducing or preventing sound transfer between areas.

It's terrific for keeping the cold or warmth in or out, yet not an excellent audio absorber. There is nevertheless an audio control spray foam that functions well as a sound blocker that can be made use of in post-construction wall surfaces. Foam boards, whether blue or pink, are made from extruded polystyrene.

Nevertheless, they do carry out well at decreasing resemble as well as responses within an area. Fiberglass insulation (the fluffy stuff) is not a rigid material as well as can experience depression and also compression over time. It likewise has actually to be pressed to reduce, minimizing both its R-value and sound taking in capacity unless fluff-up again - Soundproofing

What Is The Best Insulation For Soundproofing?

I've used it for every one of those as well as am surprised at the distinctions it made not only to improve the thermal barrier but audio additionally. The resemble, reverberation, and also comments within areas and halls practically disappeared, as well as audio transfer in between rooms as well as floor levels was lessened as well - Utilize it in multimedia as well as songs rooms to improve sound high quality and lower sound transfer.

It can additionally be framed and also utilized as movable panels to maximize their audio advantages. They will certainly numb reverberation and also echo, boosting audio high quality in a space, while decreasing sound transfer via walls. Soundproofing with Spray Foam Spray foam is polyurethane foam that gives not only thermal insulation however also acoustic insulation.

Spray foam aids to smother or minimize noises from entering a space or structure and do the exact same to audios transferring out of a room or building. Spray foam can be made use of for brand-new or current construction applications, as well as are fire retardant. Spray foams are better at obstructing sound from moving between floors as well as spaces, than soaking up sound.

The Best Way To Soundproof Your Home: Insulation

70. The STC ranking for open cell foam is 39, and the closed cell has an STC of 37. I would certainly advise the spray in ceilings and also inside wall tooth cavities to lower sound transfer and dampen audio - Soundproofing Combine it with mineral woollen or fiberglass, and also you'll have an exceptional noise taking in obstacle.

is a do it yourself product that permits you to add acoustic value to any type of wall, ceiling or floor room. In best problems, it can cover up to 1202 sqft at 1-inch thick - It will make an air barrier, and therefore a sound barrier to lower sound can be found in or going out of your room.

Using Styrofoam Insulation for Soundproofing Styrofoam is a brand name for a polystyrene foam board. Polystyrene boards, whether pink, blue, white, or one more color, are usually used in construction, but it has other applications too. Acoustically it can reduce and smother, or aid block noise from going into or leaving a room.

How To Soundproof A Room In 5 Steps

Extruded boards are shut cell foam, so it's risk-free to state it has an STC of 37. Expanded foam boards have an even more open cell building and construction with air rooms which take in acoustic waves, like one more open cell stiff foam, its STC might be somewhat greater at STC 39. When used in basic dividing wall building and construction, it can boost the wall surface STC rating to in between 51 and 55 -

The product can additionally be made use of to style bass traps to absorb or deflect low-frequency noise. What is the ideal insulation for soundproofing? It relies on a multitude of aspects: pre or post construction, building and construction strategies, inside the wall, ceiling or floor tooth cavities, hanging on a wall surface, entire home or pick rooms, kind of sound, as well as spending plan.

Nonetheless, there are 2 products readily available that will certainly help post-market wall surface as well as ceiling protecting, blown-in cellulose and spray foam ( The soundproofing contrasts below are based upon details available, as well as one of the most reliable sources found. No comparison is perfect because each brand has numerous items in every group. Mineral woollen batts (3.

Which Is The Best Insulation For Soundproofing? A Comprehensive Guide

05, are more inflexible as well as have a greater R-value/inch of thickness. It is water, mold, and mildew resistant too. Fiberglass (3. 5" thick) batts have an STC of 39 and an NRC of 0. 85, they are not rigid and often tend to compress and drop, minimizing their sound absorption abilities.

They function well in walls and as panels to soak up sound, reverberation, and also echo. 95 depending on the product. They also can be used as wall panels to lower noise, echo, and also reverberation.

Additionally, it is 75-85% recycled material and also the least expensive alternative, particularly for whole home applications. Dense pack cellulose has an STC of 44 to 68 and an NRC of 0 - Soundproofing A pre or post building and construction product, it soaks up noise, responses, and also resemble.

The #1 Solution For Stopping Unwanted Noise Sound Proof Insulation

95. Their tendency to compress and also drop reduces their noise absorption abilities. They are likewise a pre-construction or renovation option only. Fiberglass panels have an STC of 42 and also an NRC varying from 0. 50 to 0. 95, depending upon the product specs. The panels are inflexible and can be made use of on walls to dampen or take in audio and also echo.

9 relying on its thickness. It is 75 to 85% recycled material and can be used in pre as well as post construction applications. It's a good noise absorber and minimizes echo and feedback. Spray foam has an STC of 39 for open cell as well as 37 for closed cell, and an NRC of 0.

It isn't a great noise absorber as much as a reflector or deflector. Noise can still go through it, but some sound does not. It works best at protecting against sound from going into or leaving a space. Roxul Rockboard panels are 2" thick and also have an STC score in between 45 and 52, as well as an NRC in between 0.

How To Soundproof Your Room For Cheap (Best Insulation Options)

09. They function well in ceilings and also wall surfaces, and also as portable panels to take in sound, reverberation, and also echo. Tips for Utilizing Insulation to Soundproof a New Structure The major function of building insulation materials is to reduce air flow via the wall surfaces. It catches air to keep the warmth or chilly out or in, relying on the season -

Which type of insulation is best to soundproof?

Fiberglass insulation

What R-value does soundproofing require?

When someone asks about the best R-value for soundproofing materials, they will find that R-13 and R-19 can be referred to as the best. For outside walls, R-13 to R-23 are the most common.

Is a higher R-value a sign of better soundproofing?

Higher R-values indicate more effective insulation. Although insulation is a good way to save energy, soundproofing walls can only be achieved by adding additional insulation. This will not make the walls more noise-dampening.

How effective are insulations for soundproofing.

Foam insulation can deaden sound by up to 80 percent, but you will still get some sound transmission. RetroFoam of Michigan has been helping homeowners dampen sound in their homes or pole barns since 2002, so we understand how the transmission of sound works.

That does not suggest it stops all sounds. Insulation is one element in the sound decrease game.

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