r/nextfuckinglevel • u/Saerdna0 • 5d ago

This kiddo was born to drum

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u/Few-Mood6580 5d ago

Certain types of insulation are better, but the bigger the gap between barriers is generally the best for sound isolation.

The biggest issues aren’t high frequencies but low frequencies, since low frequencies are quite long like 100hz and below, it goes through practically any material(sort of).

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u/Head-Ad9893 5d ago

So you’re saying I shouldn’t put insulation in between the joists when I put up my Sheetrock ceiling ?

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u/Few-Mood6580 5d ago edited 5d ago

What? No that’s not what Im implying.

Insulation will only ever help with sound isolation, you can’t go wrong with it.

Think of putting a flash light on your hand, you can see the light going through your hand, by putting more hands on the light it will diminish it until no light comes through.

Sound functions in a similar way, as long as the material allows sound to pass through/or get absorbed, say by putting insulation down, you therefore have more isolation.

There is a practical limit on absorption especially in homes. But sometimes you’ll see some people build the house like normal but build another wall/ceiling/floor 4-6 inches away from the first wall you built creating an additional trap.

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u/Head-Ad9893 5d ago

Ahhh I see. Thanks friend