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What is the Best Way to Soundproof Walls and Ceiling of a Room?

injection foam insulation | spray foam insulation

What is the Best Way to Soundproof Walls and Ceiling of a Room? Blog Feature
Amanda Ringler

By: Amanda Ringler on June 22nd, 2020

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All you want is some peace and quiet in your home, so soundproofing seems like the best option to achieve your goal.

So how do you get there?

It’s important to know how you can cut down or eliminate the noise that’s driving you crazy. You can do this by adding insulation to your home or buying soundproofing panels. You also need to know the difference between sound deadening and soundproofing.

Soundproofing a room means you are making it impervious to sound, while sound deadening reduces the sound transmission into the room. For example, insulation can help with sound dampening, and more specifically injection foam in your walls could reduce that sound transmission by up to 80 percent.

RetroFoam of Michigan has been in the insulation business since 2002. We’ve been able to help homeowners reduce sound transmissions into their homes, but more on that in a bit.

Our mission is to educate homeowners so they can make the best-informed decision. Now let’s get down to the best way to soundproof walls and ceiling in a room.

Reasons to Look into Sound Deadening or Soundproofing Existing Walls or Ceilings

There are a lot of reasons to cut down the noise coming into your home.

Those reasons include:

  • You want more privacy so neighbors can’t hear you.
  • You are tired of hearing everything that happens at your neighbor’s house.
  • You can hear the 3:10 to Yuma every time it passes through your neighborhood.
  • You are considering a career in air traffic control because you live so close to the airport.
  • You can hear every vehicle that drives down your street.

These are just some of the outside annoyances you could be hearing, but it also could be from room-to-room in your home. You’re tired of hearing the kids arguing over the Nintendo in the playroom or the TV in the living room.

The path you choose to fix these sound issues really depends on your expectations. If you want your room or home to be dead quiet, then the process is different than if you want to reduce the noise.

Acoustical Solutions for Soundproofing Walls and the Ceiling of a Room

Acoustical solutions for soundproofing existing walls and soundproofing existing ceilings differ from adding insulation.

From extra drywall to absorbing sound with acoustic panels, there are several ways to make your room soundproof, according to House Logic. Those secrets include the following:

  • Extra drywall to deaden sound vibrations.
  • Acoustical caulk in between the two layers of drywall.
  • Sandwich mass-loaded vinyl between the two layers of drywall to deaden sound.
  • Use acoustical caulk to plug sound leaks around ceiling fixtures, switch boxes, receptacle boxes, and door casings.
  • Add sweeps to the bottoms of doors and weather stripping to door frames.
  • Absorb sound with acoustic panels.
  • Add rugs, carpets, and drapes to reduce vibrations and ambient noise.
  • Sound deadening duct wrap can quiet noisy ducts.
  • Replace hollow-core doors with solid-core doors to absorb sound.

If you don’t need to cut the noise out completely, but would be happy to just reduce it, using foam insulation to deaden the sound may be your solution.

Soundproofing Spray Foam?

Sound will move through your home the same way that air does – if you have any gaps or cracks, that noise and air are coming in, according to How to Soundproof.

Your home may need updated insulation, which in some cases can help create the sound deadening you’re looking for. Just keep in mind, if you create an air barrier, you’re not just cutting down on air movement, but noise as well.

Your insulation options are spray foam and injection foam.

Injection and Spray Foam Insulation for Sound Deadening

To get the sound deadening you’re looking for, you can use both injection and open cell spray foam.

Injection foam insulation can be installed in your existing walls without tearing down your drywall.

Injection foam installation crews will remove a panel of siding, drill a hole into the stud cavity, and then inject the foam. The installer ensures the cavity is full by running the hose from the top to the bottom. Once the stud cavities are full, a member of the crew closes the hole and the siding is replaced.

Injection foam can also be used in internal walls as well by drilling through the drywall to reduce noise from room to room.

Spray foam insulation for sound deadening can be used for the ceiling if you have an attic above.

In most cases, the roof deck of the attic is insulated to seal the envelope of the home, but that doesn’t mean the floor of the attic can’t be insulated instead. It really comes down to what you use the attic for and if you want to seal it off from the rest of your home.

If you have a cathedral ceiling, spray foam can be used. Panels are cut into the ceiling, and the installer sprays the foam in the ceiling cavities. The drywall is replaced and a rough coat of drywall mud is spread over the seams.

Spray foam and injection foam both completely fill the cavity where they are installed. This makes it a great insulation material when it comes to reducing, not eliminating, noise in your home.

Choosing the Best Method and Material for Your Soundproofing or Sound Deadening Needs

If you’re looking to completely soundproof a room, insulation alone isn’t enough to get the job done. If you just need to reduce the noise, foam insulation can help you accomplish this goal.

If you’d like to learn more about some of the benefits of foam insulation, check out the Learning Center on our website.

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About Amanda Ringler

Amanda previously has worked as a breaking news and crime reporter, TV news producer, and editor in Flint and Detroit. Throughout her career as a journalist, she has won several awards from The Society of Professional Journalists - Detroit Chapter and the Michigan Press Association. As part of the RetroFoam of Michigan family, Amanda uses her experience as a journalist to write content that will help educate homeowners on the benefits of foam insulation. When Amanda isn’t writing, she’s spending time with her husband and rescued huskies. She also loves knitting, making art, cooking, and hosting dinner and a movie night for friends and family.