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Is Open Cell Spray Foam Insulation Good For Soundproofing?

As a homeowner, having a quiet home amidst the hustle and bustle of everyday life is a priority. Whether you live in a busy street or a noisy neighborhood, controlling sound intrusion can make your home a peaceful haven. One way to achieve this is by installing spray foam insulation

Curious about whether it’s the right fit for your needs? In this post, we’ll guide you through the ins and outs of soundproofing with spray foam insulation.

How Does Spray Foam Insulation Work?

Spray foam insulation is made by mixing chemicals such as polyurethane and isocyanate. It quickly expands and hardens and becomes an airtight barrier and impenetrable layer on surfaces like walls and ceilings when heated and sprayed. 

The open cell insulation works by creating a barrier that reduces outdoor noise from getting into your home and keeps internal sounds from escaping. It effectively seals gaps and cracks that are often overlooked by traditional insulation methods. And the beauty of it lies in the spray — allowing for a tighter, more secure seal than other types of insulation.

Open Cell Spray Foam Insulation Blocks Sound More Effectively

Compared to its counterparts, such as the familiar fiberglass insulation, open cell spray foam insulation is the best in sound absorption. Its higher density, coupled with its ability to create airtight seals preventing sound from passing through gaps and holes, means sound doesn’t stand a chance. 

Unlike fiberglass insulation, which allows sound to pass through, open cell spray foam insulation absorbs sound waves and acts as a sound barrier. Similarly, closed cell spray foam insulation does not deaden sounds like open cell can.

Soundproofing Specific Areas of Your Home

Soundproofing areas of your home, such as a home theater, a music room, or a home office can be achieved with spray foam insulation. 

You can apply open cell spray foam insulation to the walls and ceiling of your home theater, music room, or other interior rooms to craft an acoustically-controlled environment. It allows you to enjoy high-quality sound without worrying about adding noise pollution and interrupting household harmony.

Cost of Spray Foam Insulation

Open cell spray foam insulation may not be a higher initial investment compared to other types of insulation options. In many cases, the price is actually similar to traditional insulation options.

Plus, the benefits it pays in terms of soundproofing and improved indoor air quality are immeasurable. With an air-tight seal, open cell spray foam can save homeowners money by reducing their monthly energy bills, making it a smart move in the long run.


If you’re aiming for a peaceful and serene home, then soundproofing open cell spray foam insulation might be the perfect solution. Its advantages, ranging from ideal soundproofing to enhanced energy efficiency and indoor air quality, set it apart from the rest — not to mention the lasting economic benefits of reduced energy bills. Take a step towards a quieter, more peaceful home and see how open cell spray foam insulation can benefit your home.
If you’re ready to learn whether your home is ready for spray foam insulation, get a free quote from Seal It Insulation Systems today!

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