Is Denim Insulation Good For Soundproofing?

A noisy neighborhood is not something you want to deal with when looking for a home. Worse still, you might be the cause, albeit unintentionally.

When you can’t stand your neighbors’ barking dogs, or you think it’s the right time to open a home studio, you will need a soundproofing remedy. 

The peace that comes with solid soundproof insulation is worth the effort, so it is important to choose carefully the type of materials to use.

This is because soundproofing should be a permanent solution, and it is important to choose materials safe for your health and those living in your home.

As a home improvement project, soundproofing is not as simple as it may seem. It requires technical know-how, so be sure to do your research or hire a professional if you want to achieve the best results.

This is especially important if you are looking to soundproof a room where people will be congregating, like a home theater or music studio.

Understanding denim insulation

Denim insulation vs fiberglass

Denim insulation is made from recycled blue jeans and other cotton fabric waste. It is an eco-friendly material that is also non-toxic, making it a safe choice for your home.

Denim insulation has good noise reduction properties because it is dense and heavy. This makes it effective in absorbing sound waves and reducing noise levels.

While fiberglass insulation is a popular choice for soundproofing, it can be dangerous to your health if not installed correctly.

Fiberglass insulation contains tiny glass fibers that can become airborne and be inhaled. This can cause respiratory problems and other health issues.

If you are looking for an eco-friendly and safe soundproofing material, denim insulation is a good choice.

Denim insulation is made from recycled materials and does not contain any harmful toxins. It is also effective in reducing noise levels, making it the perfect choice for homes with noisy neighbors or home studios.

Why denim insulation for soundproofing?

Denim has great absorption qualities that make it a great soundproofing material.

The denim material dampens sound more brilliantly than other insulators. This makes it better at soundproofing, as absorbing the sound ensures it does not pass through the insulation easily.

The following are more properties that make denim insulation worth it


Denim and cotton make up this insulation, and these are both sustainable materials.

The manufacturing of denim insulation also doesn’t release any toxic chemicals into the environment. Both are organic and do not contain harsh industrial chemicals, making them environmentally safe.

Additionally, manufacturing it from recycled materials helps keep the environment clean by reducing the amount of denim dumped in the environment.

You can also recycle the installation material at the end of its usability.

Long lifespan

Denim is a durable material that does not degrade easily. Once installed, it can serve you for years without the need for replacement.

This makes it a cost-effective soundproofing solution in the long run. This means you will save the money needed for future replacements of your sound insulations.

Does not allow heat to pass through easily

This helps keep your home warmer compared to using other insulation materials like fiberglass, hence saving you bills for warming the house.

Fresh indoor air

The denim insulation has small air spaces that allow ventilation. Furthermore, recycled denim does not contain formaldehyde, which leaks and pollutes a room’s air.

This makes it perfect for preventing allergic reactions such as asthma, which may be caused by using other soundproofing solutions such as fiberglass.

Better health and safety

The lack of toxic chemicals and fire-resistant properties make this insulation a much safer choice than fiberglass.

Denim installation is also safer against fire. Since the fabric materials are mixed with boric acid, they are not readily flammable and will aid in preventing the spread of fire.

Additionally, borax has low toxicity levels, making it safe for humans and the environment.

Getting the right acoustic properties

Denim is a dense material, and this makes it effective in sound absorption.

The weight of the denim stops sound waves from passing through easily, and this ensures that noise levels are reduced significantly.

Demerits of denim insulation

Recycled denim insulation soundproofing

Costly as compared to other insulations

On average, the installation expense will cost about 10% more than fiberglass, hence less workable for a tight budget.

You will be surprised at the amount of money you will save on repairs, replacements, and energy bills.

However, since denim will last much longer than fiberglass, the additional cost will be worth it in the long run. For installation, the insulation is fitted between floor joists and rafters.

You can use this soundproofing solution in any part of a home or building to provide acoustic protection and regulate temperature.

It effectively keeps out both cold air during winter and hot air during summer from entering your house.

Requires a vapor barrier

Denim insulation is prone to getting wet, and when it does, it becomes heavy, crunched, and will take a long time to dry. This also increases the chances of your walls developing mold and rot.

The vapor barrier is an additional expense and labor to the insulation, thus more budget for the final project.

Using a vapor barrier will protect the insulation from getting wet and prevent mold and rot. As such, it is essential to factor in this additional cost when budgeting for your insulation project.

Final Thoughts

Denim insulation provides better soundproofing qualities than fiberglass insulation.

Moreover, it is eco-friendly, fire retardant, and recyclable. These properties outweigh the initial installation cost, making it the superior insulation.

Whereas denim insulation will require a vapor barrier, fiberglass insulation will not.

Even though you can do without the vapor barrier, if you live in a very moist climate, it is highly recommended to install one as mold and rot can form on the walls with moisture and no vapor barrier. 

Remember, you don’t necessarily need a ton of money to soundproof your space!

Sometimes, all you need is a few strategically placed pieces of denim insulation. You may be surprised at just how effective it can be.