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Mass is not enough

Can you block noise by adding mass? That depends on the situation. What kind of noise? How does the noise travel? What materials will you use, and how will you apply them? This 2008 article from " Sound on Sound ," explains that sound "cannot be destroyed: it can only be converted into another form of energy." While some sounds are airborne and can easily be blocked, you might still hear lower-frequency sounds passing through on the other side. This is because the energy from sound waves makes the walls vibrate, and this creates more energy. Does adding mass help? Yes. Will mass solve all your noise issues? Possibly not. You might also need to address other characteristics of the space by adding sound absorption inside the rooms, or by decoupling the floors, ceilings, or walls from the structure to keep the sound (energy) from passing into it. Let's look at a couple of examples. Example 1: Interior doors Many American homes feature hollow-core interi