7 Soundproofing Myths

We’re often approached by individuals who have no experience in soundproofing and they, to our astonishment, often have some interesting stories about the soundproofing advice they’ve received from family members and friends. There are several really great methods for soundproofing and almost as many sure-fire failures. The following are some of the soundproofing tips you should completely ignore.

7. Eggcrates

Eggcrates, contrary to popular belief, make terrible soundproofing material. The materials used to make egg crates are strong and can handle weight but they are also porous materials and can not block or absorb sound. Sound will simply pass through an egg crate. Don’t waste your time trying to hunt it down.

6. Old Mattresses

We’re not sure how or why anyone would have tried this to begin with but nailing old mattresses to your walls will not help your soundproofing efforts unless you do a lot of work to butt them together and fill in all of the spaces in between the mattresses. Even if you were willing to do all of that work, why would you want old, smelly mattresses with the potential to mold and stink nailed to your walls. We’ll take a pass on this one.

5. Black Paint

Someone must’ve been playing a cruel joke on a friend the day this rumor started. Contrary to what you may have heard, dark paint will not absorb or block sound. End of story.

4. Carpet

Some individuals think that nailing carpet to the walls of a room will make it soundproof. Carpet will actually help absorb sound created in the room but will not keep sounds from entering the room. It’s also an ugly alternative to proper soundproofing and will eventually fade, rot, and smell.

3. Cellulose

There are people who get paid a great deal of money to drill holes in the top of your walls, pump in some cellulose, reseal the walls, and leave. The cellulose may reduce the sound (a tiny bit) but really isn’t effective when it comes to creating a sound proof room. It certainly won’t yield the results you expect compared to the price you’re going to pay.

2. Foam Rubber

Foam rubber has the potential to work – a little. The problem is that it will eventually rot and become less effective. The other problem is that for the price you pay for some foam rubber you could easily purchase proper soundproofing materials. Why not just do it right the first time?

1. Hay Bales

Believe it or not, hay bales will absorb and block sound. But why on earth would you want hay bales in your home? They’re dirty, smelly, cause allergies, and will harbor mildew and mold. They’re firehazards and if you leave them outside someone will probably try to steal them.


Do yourself a favor and purchase proper soundproofing materials, like Green Glue, the first time around. You’ll save money by not having to complete a soundproofing project twice!

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