![]() While high-STC materials should help dampen impact sounds, they may only slightly reduce flanking noise. 35 – Sounds are audible, but not understandableīut remember that STC ratings only indicate a system’s effectiveness at decreasing airborne sounds.The following list of STC ratings describes how audible loud speech would be from the other side of a wall for a particular value: Sound Transmission Class (STC) is a numbered rating that indicates how effectively an entire product assembly-framing, drywall, insulation, dedicated soundproofing materials, and other components-resists the transfer of airborne sound. If you ever tried to make a “phone” out of two cups and a string, you’ve experienced flanking sound firsthand.Įven the best sound insulation for walls won’t completely remove all of these kinds of unwanted noise (especially flanking noise), but they can dampen them. Flanking sounds – Flanking noises are particularly hard to track down (and eliminate) because they travel through materials like ductwork and electrical outlets.Impact sounds – The sound of footsteps upstairs is partially caused by the vibrations of the materials in the floor/ceiling vibrating on impact-other impact sounds include the noise of falling toys, hammers, and slamming doors.Airborne sounds – Car horns, conversations, and sound equipment all send sound through the air, creating airborne noise. ![]() While you explore soundproofing insulation solutions, remember to focus on the three kinds of sounds you’re trying to reduce: ![]() While these tools can work wonders, remember to set realistic expectations-they won’t eliminate 100% of the outside sound. Suspended ceilings, floating floors, and decoupled walls are all used in recording studios, for instance, to create an envelope of “dead air” around the recording booth.īut, unless you have the budget and time to completely rebuild your home, you’ll have to rely on other methods, like adding insulation or replacing your windows. Soundproofing ExpectationsĪchieving 100% soundproofing in a room isn’t impossible, but it does require a big budget-the best way to attain blissful quiet and keep out any unwanted noise is to create a suspended space or a room within a room. Soundproofing: A Brief ExplorationĬhoosing the best soundproofing material for walls and ceilings requires understanding a few elements of soundproofing in general-what to expect from your materials, the types of sound you’ll be combating, and how materials are rated for soundproofing. Whether you’re trying to drown out your kids’ raucous Mario Kart marathons in the den, cut out the traffic noise from outside, or quiet the pacing footsteps in the upstairs home office, insulation materials could help you reduce the noise level in your home.īut what’s the best insulation for soundproofing walls? Before we get to the bottom of it, we’ll explore some soundproofing basics, explain what to expect from the materials on the market today, break down some benefits of insulation for soundproofing, and provide a few elements to consider before heading to the hardware store for soundproof attic insulation.
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