![]() ![]() It is a very cost-effective way to help soundproof your interior walls. Otherwise, they would be points of entry for outside soundwaves to make their way in.Ĭellulose blow-in insulation provides several advantages. The cellulose traps little pockets of air, which then trap sound waves and drain their energy, nullifying the noise before it reaches the other side.īecause it is blown-in, unlike other forms of insulation, the cellulose insulation can fill all of the little nooks, crannies, and holes. ![]() It can be added into walls after construction, a task that is very difficult with other types of insulation.Īdding blow-in insulation into your existing walls will increase their sound absorption abilities. With an STC rating of 44, it can be very effective at helping to soundproof both interior and exterior walls. Add Blown-In Insulationīlown insulation is loose, low-density cellulose insulation that is made mostly from recycled newsprint. Soundproofing Interior Walls Without Removing Drywall 1. By eliminating contact points and adding rubber decouplers where surfaces meet, you can drastically reduce how much energy is allowed to pass through. Vibrations are easier to pass through two touching surfaces. One of the most effective ways of reducing how much noise is transferred is by decoupling the surfaces. Mechanical DecouplingĪs we’ve mentioned, the sound is transferred through vibration. Lower frequencies contain considerably more energy and will need much more absorptive material to kill the momentum of the wave and stop it from transferring. ![]() The fiberglass insulation in the walls of your home is a great example of absorption sound reduction.Ībsorption works best with higher frequencies. Some materials can absorb and negate the energy produced by a soundwave. This will, in turn, make it more difficult for a soundwave’s energy to transfer through the surface.Įssentially, you are putting more solid material in between the sound source and the environment you wish to keep quiet. Increasing the overall amount of material on an object will make it heavier and larger. Heavier, larger things are harder to move than smaller items. When a sound wave hits a hard surface, it must create movement within that surface for the sound to transfer. If you know the techniques used to stop the transfer of sound, you’ll be better able to implement these soundproofing methods yourself. Important Principles of Soundproofing Existing Wallsīefore you jump into trying out different methods of soundproofing, it’s essential to understand how soundproofing works. Let’s discuss what each one entails and how effective it will be at helping to soundproof your interior walls. While a few of them may be pretty simple to implement, some will be much more extensive and require more work. Some of these options are more effective than others. Install a Second Layer of Drywall With Green Glue.These are the most effective ways to soundproof existing walls from my list. Through my research, I discovered 15 ways to soundproof your home without removing drywall. Since I didn’t want to tear apart my new home, I needed to find ways of soundproofing existing interior walls without removing drywall. However, I noticed within a few days that the traffic noise was much louder than I was used to, and it was disturbing my concentration for work. After moving into my new home, everything seemed perfect at first. ![]()
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