Everything You Need to Know on How to Soundproof Thin Apartment Walls

It comes as no surprise that the apartment walls are one of the easiest ways for noise to enter your home. These paper-thin apartment walls are usually made up of the flimsiest materials like wood and brick, which easily allow sound waves to pass through.

Moreover, if you share walls with your neighbor, it adds fuel to the fire by giving you constant access to the noise from their apartments throughout the day— and even at night.

Soundproof Thin Apartment Walls

This not only disrupts your sleep patterns but also leaves you fuming and annoyed throughout the day. It’s time to get your peace and privacy back with these proven methods below.

How to soundproof thin apartment walls? Let’s find out.

Materials You Will Require to Soundproof Thin Apartment Walls

Before embarking on your soundproofing project, it is important to understand the kind of noise you are dealing with and address its source.

This is usually found in the form of airborne noise and impact noise that results from all sounds within the apartment building which may cause shaking and reverberation in your walls.

The reason why most walls fail to protect your apartment from noise is because they are usually prefabricated structures in factories, and hence made from the thinnest quality of materials that are easy to transport.

Now, you must be wondering how do you soundproof an existing wall. Well, without further ado, let’s take a look at the basic materials you would require in order to get started with soundproofing your apartment walls:

  • Soundproof blankets and curtains.
  • Mass Loaded Vinyl or other rubber materials.
  • Soundproof acoustic panels.
  • Sawn timber.
  • Soundproof insulation.

Most of these materials are widely available online and in local stores. It is best to keep them handy before you begin your soundproofing project.

Now it is time to delve into the soundproofing process.

How to Soundproof Thin Apartment Walls?


Rearrange your Furniture

This step is so easy and basic it is shocking that more people don’t know about it.

The reason behind this is your walls are usually so thin that stacking it up with heavy furniture add an additional layer of thickness to it. This, in turn, allows the sound waves to travel through a longer distance before reaching the room.

Moreover, they also help in simply absorbing the sound and trapping it inside, thereby preventing the noise to reach your ears.

Put up heavy furniture like bookshelves, couches and wardrobes along with wall paintings and wall hangings to see the difference yourself.


Installing Soundproof Blankets and Drapes

Covering the wall with soundproof blankets and curtains are a foolproof method of soundproofing that never goes wrong. It is also highly effective in noise reduction.

Having said that, most blankets that you own already have sound absorbing properties and can hence be easily used to cover the walls as a preliminary method.

Collect all your old blankets and start fixing them to the walls using standard mountain putty along the edges. If you wish to go a step further, you can also nail the blankets to the wall.

You can also purchase soundproof blankets from online stores, which are more durable but equally effective in soundproofing.

The soundproof curtains are also very effective in noise blocking. They are widely available online and are comparatively easier to install. These thick and heavy curtains not only provide soundproofing but are also a valuable piece of interior décor, owing to their appearance and design.


Add Drywall Layer

An important constituent when it comes to home building and soundproofing your apartment walls, drywall is a super effective method of sound insulation and noise dampening that is widely adopted.

Drywall is nothing but a panel made of sound absorbing materials such as gypsum, ceramics and viscoelastic that can block the noise and keep your house insulated from any external disturbances.

You can add a thick layer of drywall to your existing wall and put Green Glue on it. Green Glue is a product with excellent soundproofing properties that is applied between two hard surfaces.

For best results, apply Green Glue on your existing drywall and install another drywall layer on top of it.

If your question is how can I reduce noise in between rooms, this method works perfectly well.


Mass Loaded Vinyl

Putting up Mass Loaded Vinyl (MLV) or other similar rubber-based material on your walls is an equally effective soundproofing method.

MLV is a great product that can also be applied in addition to the soundproofing methods we have already mentioned.

For instance, you can attach MLV to the wall before covering it with blankets and drapes.


Using Acoustic Foam Panels

Although acoustic foam panels are more suitable to enhancing the acoustic qualities of the room, as in case of a music or recording studio, a few such products can also help in blocking out the noise coming from the walls.

Acoustic panels with wooden frame are an ideal choice for soundproofing.


Look for Cracks and Air Spaces and Seal Them

Here’s an interesting fact.

Most apartment walls that were built back in the day (and even now) actually connected two apartments and acted as a shared or common wall because of passing and transferring cable wires through them. In such situations, they often leave behind tiny holes and cracks in these thin walls which offers an easy pathway for noise to travel back and forth.

To get this job done, you can choose Green Glue which has exceptional soundproofing qualities. You can also opt for acoustic caulking and sealing using other popular sealants available on the market.

Summing Up

These methods mentioned above are just a few among the numerous other methods available for soundproofing your thin apartment walls. Other common methods include using sound dampening paint on your walls, installing a white noise generator and even constructing a separate, thicker wall between the shared apartment walls are worth considering.

Following these steps, you can guarantee yourself a peaceful and noise-free home atmosphere, suitable for healthy living.

Leave a Comment