We all want our homes to feel like a refuge from this busy world. But with today’s open floor plans, hectic households, and the steady hum of traffic or neighbors, peace and quiet can be hard to come by. Whether it’s the TV blaring in the next room, footsteps overhead, or street noise sneaking through walls, unwanted sound is more than an annoyance—it affects focus, sleep, and overall comfort. Not to mention audio quality for work-from-home meetings and at-home podcasters.
This is where spray foam insulation can step in. Known for energy efficiency, spray foam also offers surprising benefits when it comes to reducing noise. By sealing gaps and dampening sound transmission, it can make your home quieter, cozier, and more enjoyable.
Dialing Down the Noise: What is STC Rating?
When researching soundproofing, you’ll come across the term STC, or Sound Transmission Class. STC is a rating system that measures how well a wall, ceiling, floor, or door blocks airborne noise. The higher the STC number, the better the sound barrier.
- A typical interior wall without insulation might have an STC rating of 30-34—enough that you can still clearly hear conversations through it.
- Add insulation, and that number can climb closer to 40-50, which makes voices and TVs far less distinct.
Spray foam insulation helps improve STC ratings by filling every gap and reducing the paths by which noise can travel. However, it’s important to set realistic expectations. While spray foam is excellent at stopping airborne sounds like talking, TV noise, or barking dogs, it won’t fully block low-frequency vibrations such as bass from music or heavy truck rumbling.
Let’s look at how you can improve STC ratings and soundproofing around your home.
Air Sealing = Noise Reduction
Most sound travels the same way air does: through gaps, cracks, and poorly sealed surfaces. Outlets, windows, door frames, and spaces around your drywall are all areas that become highways for noise to travel and bounce around.
Spray foam insulation works by expanding into these spaces to close them off and prevent sound from slipping through. This air-sealing ability makes spray foam different from traditional insulation. While fiberglass or cellulose can muffle sound to an extent, these materials don’t block air leaks that can carry noise into the house and between rooms. Spray foam does both: it seals and it absorbs.
The result? Less noise from outside sources, fewer echoes between rooms, and an overall quieter living space.
Benefits of Spray Foam Soundproofing
Spray foam insulation isn’t just a one-trick pony. While many homeowners think of it primarily for temperature control, its unique properties make it a versatile upgrade. When it comes to soundproofing, spray foam delivers a blend of advantages that other materials can’t match. From reducing everyday noise to improving energy efficiency, here are some of the key benefits you’ll notice when using spray foam for sound control.
1. Noise Reduction
Spray foam helps cut down on noise in walls, ceilings, and floors. It’s especially effective in places where pipes, ducts, or wires pass through walls, all of which are common noise leak areas that homeowners overlook.
2. Energy Efficiency
The same qualities that make spray foam good at blocking sound—expansion, sealing, and density—also make it one of the best insulators for temperature control. You get a quieter home that’s also more energy-efficient.
3. Moisture and Air Control
Because spray foam seals tight, it also helps reduce drafts and moisture intrusion. That adds another layer of comfort and protection to your home, with long-term benefits for your walls and air quality.
While spray foam is excellent at sealing and sound dampening, it isn’t a silver bullet. If you’re looking for studio-level silence, you’ll want to start with spray foam and then combine it with other soundproofing strategies like resilient channels, acoustic panels, and thick carpeting.
Canned Spray Foam: Noise Reduction Without the Mess or Cost
Once you’ve decided that your home could use noise reduction improvements, you have options to make it happen. Traditional 2-component (2K) spray foam kits are great when a house is being built or remodeled, but the setup takes time, the hoses can clog, and leftover material rarely stores well. Not to mention the price tag: a typical kit can run $500–$1,000 or more. For large-scale jobs, that investment makes sense. But for soundproofing small spaces or touchups, it’s often overkill.
That’s why more contractors and homeowners are turning to Tytan Professional® Thermospray, which is a single-component, canned spray foam designed for smaller jobs while offering professional-grade performance. With Thermospray, you get the acoustic and thermal benefits of spray foam—without the tanks, hoses, or inflated costs.
Here’s what sets Thermospray apart:
- Cost-effective Noise Reduction: At roughly half the cost per board foot compared to 2K kits, Thermospray lets you use only what you need, making it an affordable solution for sealing and soundproofing smaller projects.
- Perfect for Small Spaces: Whether you’re patching around outlets, insulating under stairs, or soundproofing a bathroom wall, Thermospray expands to fill tight, awkward areas that batts or boards can’t reach.
- Professional Performance: With an R-value of 4-5 per inch and sound blocking up to 62 dB, Thermospray delivers results comparable to traditional 2K systems.
- Simple, Clean Application: Just prep the application surface, shake the can, attach to the applicator gun, and spray. No tanks. No hoses. No wasted afternoons troubleshooting equipment.
- Less Waste, More Flexibility: Because it’s a single-component formula, you can save what you don’t use and use for later—something that’s nearly impossible with 2K kits.
Read more on the benefits of Thermospray canned spray foam insulation.
Thermospray isn’t meant to replace full spray rigs for large-scale jobs. Instead, it fills the gap between oversized equipment and smaller, specialized needs. It’s the smarter, more cost-effective option when you want reliable soundproofing and insulation in spaces that don’t justify dragging out a 2K kit.
For contractors, that means more jobs finished quickly and profitably. For homeowners, it means professional-quality soundproofing without the professional-size bill.
Where and How to Use Canned Spray Foam for Soundproofing
Noise can come from anywhere, but some spots are more problematic than others. Canned spray foam is especially effective in:
- Interior walls between bedrooms, offices, or playrooms
- Podcast or music studios where background noise can ruin a recording
- Bathrooms, where plumbing and vents often amplify sound
- Basements and garages, which frequently let outside noise creep in
- Ceilings and floors, to reduce noise between levels of a home
Getting started is simple:
- Identify gaps, cracks, and noisy areas that may be contributing to excess noise around your home.
- Apply Thermospray canned spray foam in accessible spots like outlet boxes, door frames, window joints, and around pipes—any area where sound could travel.
When it’s time to replace the drywall—or take on a bigger soundproofing project, for example, in your podcast studio—use Thermospray to efficiently and effectively insulate every nook and cranny behind the drywall.
Quieter, More Comfortable Living
Improved soundproofing at home offers comfort, productivity, and peace of mind. By reducing noise transfer, canned spray foam insulation creates a home environment that feels calmer and more private. And because it doubles as one of the most energy-efficient insulation materials available, you’re not just making your home quieter—you’re making it smarter, healthier, and more sustainable.
If you’re tired of unwanted noise, start small with a few cans of spray foam for problem areas and expand from there. For a soundproofing job well done, choose Tytan Professional Thermospray.
