Wall Sound Proofing Challenge:
Our goal is to block the transmission of sound from bleeding through a common wall. We want to protect one room's noise from the next with a soundproof wall. Common wall sound proofing can be applied to new build, exposed frame or existing finished wall surfaces. Wall sound control is all about adding "density + disconnection" to the common surface.
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Your Wall Soundproofing Treatment:
Your ultimate goal is to impair the wall's ability to conduct vibration. This is accomplished by adding two components to your wall assembly. The first is density, the second is disconnection. The combination of these two ingredients will help force the collapse of your sound wave inside your common wall, and can trigger up to a 90% drop in sound transmission.
Your treatment will depend on your starting point. Tell us what stage you are at:
My wall is finished
My wall is not yet built
My wall is exposed framed
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Acoustic Result:
As we simulate in our Sound Chamber, this sound insulation treatment can reasonably trigger a 10-12 dB drop in noise levels bleeding through a common wall. Much of the success of a sound isolation wall will depend on the quality of the installation, the disconnected framing techniques, and the number of holes in your wall surface that will impair your noise reduction efforts.
Open air holes in a wall are called "flanking" paths for , and will serve to deteriorate results. They include switch plates, electrical outlets, supply vents, return vents, light cannisters, pipes, windows, doors, and a host of other possible paths that can not block noise bleed. For soundproofing common walls, If you frame the wall properly, line it with dB-Bloc, and minimize the flanking paths, you can trigger up to a 90% drop in noise bleeding through.
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Start Smart: Good Decision Making Will Save You Money
Making good decisions will save you time and money. Nothing is more costly or pocketbook-draining than to discover that the wrong product, the wrong treatment, or the mis-installation of your order forces you to start over, accept inferior results, or suffer from buyer's remorse.
To help avoid missteps and protect your investment, NetWell Noise Control offers its famous, safe, and secure email course called StartSmart. It is filled with valuable insider tips on saving money with your soundproofing treatment. This popular teaching tool is your guide to a successful soundproofing outcome. The eCourse is free, and enjoyed by more than 90% of all new customers.
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From our Sound Proofing Blog
Preventing noise bleed through a common wall is the goal of one of the most frequently sought soundproofing endeavors. The issue of unwanted noise transmission through common walls occurs in the same way whether the application is residential, industrial or commercial. To implement the sound reduction techniques that adequately prevent noise from traveling through common walls in a home, office or industrial setting, understanding why noise travels throughout a home or building in the first place is beneficial.
What we interpret as sound is simply a collection of structured vibrations that travel from molecule to molecule through medium such as air and water as well as solids such as wood, concrete and glass. Untreated common walls between rooms are not generally equipped to prevent noise transmission between the rooms, and in fact tend to provide an ideal common surface through which sound can easily travel. Therefore, the goal in controlling sound transmission between rooms is to inhibit the ability of sound waves to pass through these common surfaces and into adjoining rooms.
Reducing the transmission of sound waves through the walls of a room involves isolating the room by increasing the density of the structure and establishing a disconnection from the original wall. An effective way to increase density is to line each wall in a room with a mass loaded vinyl such as dB-Bloc, which is a heavy membrane designed to be stapled or screwed over the entire wall surface. Adding density to a wall reduces its ability to vibrate, thus reducing the ability for sound vibrations to pass through.
The second phase of isolating a room to reduce sound transmission through its walls is establishing a disconnection from the original wall surface. The common walls adjoining one room to the next provides a means for sound waves to travel directly through the surface and into the next room. By creating a secondary surface and thus space between the walls, this treatment can force sound waves to collapse between the walls and significantly reduce the amount of noise that is audible in the next room. Creating a secondary wall surface involves affixing evenly spaced horizontal furring strips from floor to ceiling, and adding a new layer of drywall in front of each wall of the room.
Additional measures, such as sealing joints among walls, floors and ceilings with acoustic caulk and doubling up on the density + disconnection method described above can increase the effectiveness of a wall sound proofing project. For example, using two separated (not touching) layers of dB-Bloc and creating a third layer of drywall at a different depth than the second can improve the results that can be expected from a wall soundproofing project. The method of increasing density and disconnecting wall surfaces is extremely effective for sound reduction, though no treatment will generate a 100 percent reduction in sound transmission through common walls.
The need for wall soundproofing treatments span a wide range of applications, such as homes, doctor’s offices, school classrooms, sanctuaries and countless others. At the inception of any soundproofing project, consulting with a knowledgeable soundproofing professional is recommended to ensure that all variables are considered and the most effective treatment is applied.
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