Are Impact Windows Soundproof (Worthwhile Investment?)

There are many myths out there surrounding impact windows and their soundproof properties. Some people believe that impact windows will completely remove exterior sounds from entering a building, while others believe that they simply deaden the noise.

Are Impact Windows Soundproof? Yes, impact windows are soundproof. Impact windows are designed to withstand high winds and other harsh conditions. They are typically made of vinyl or aluminum and have a double-pane glass, which helps them absorb sound. Because the glass is laminated, it also helps keep out rain and cold air.

The sun is out and the windows are open. Can you hear the kids playing in the street? Do you hear the neighbor swearing about his dog again? If you’re thinking about replacing your windows and considering impact windows, but are unsure if they’ll be soundproof, read on to learn more.

How Impact-Resistant Windows Block Sound

How Impact-Resistant Windows Block Sound

Impact-resistant windows reduce sound by using double pane glass, thicker panes and a plastic membrane. The thickness of the panes can be increased to block more sound, while the use of a plastic membrane will also help to improve impact resistance by reducing vibrations passed through the frame and glass.

An impact-resistant window is made of materials with high energy absorption properties. 

These materials include metals such as aluminum, steel and copper. Impact-resistant windows are ideal for homes located near busy highways or public transportation routes because they can absorb noise better than traditional glass windows.

There are several factors that contribute into its soundproofing property:

Double Pane Glass

One of the properties of impact-resistant windows is its soundproofing property. Impact-resistant windows are made from double pane glass, which helps to block out unwanted noise from the outside. 

Double pane glass is a material that has two layers of glass separated by something in between. The main function of this is to keep the heat in during winter and out during summer.

The two panes of glass work together to absorb and reduce sound that comes from outside, blocking out up to 50% of external noise.

Thicker Panes

Impact-resistant windows are designed to absorb the energy of an impact. They’re built with a thicker pane of glass, which means they can handle more force without breaking.

Thicker panes are a simple, but effective way to reduce sound. The thicker the pane, the less sound will be able to pass through it. This is because thicker panes have more mass, which means that they take longer to vibrate than thin panes do. 

When you’re looking for impact-resistant windows that block sound, consider this factor as well.

Bonded with Plastic Membrane

The window panes are bonded with plastic (polyvinyl butyral) membrane. This is a very thin layer that separates the two panes and helps make the window more impact-resistant. The two panes are also insulated from each other by a thin space between them, which helps reduce sound transmission.

The reason that impact-resistant windows block sound is because they have a barrier between two pieces of glass. The membrane keeps the glass from vibrating, which prevents it from transferring sound waves to other parts of your house or apartment.

Tempered Glass

The quality of soundproofing that a glass will provide depends on several factors. One of them is the thickness of the glass. The thicker it is, the more soundproofing it will have. Another factor that contributes to soundproofing is the type of glass used to make the window.

One type of glass that provides excellent soundproofing properties is tempered glass. This kind of glass has a special surface treatment that makes it more resistant to impact and breakage than ordinary window panes, which makes it ideal for use in high-impact areas such as bathrooms or kitchens where there’s a lot of movement and vibration going on within close proximity to where people live or work.

Heavy-duty Frame

Impact-resistant windows have heavy-duty frames that are designed to withstand impact from outside. 

The frames of impact-resistant windows are made from vinyl or aluminum, which are both very strong and durable. These products can withstand a lot of pressure and force, which means that they will not easily be damaged by any outside forces.

When you install these types of windows it will help keep the outside noise out because there will be no gaps between the window and wall where it could come in through. 

This means that you will not have to worry about any outside noises coming into your home and disturbing you while you are trying to sleep or relax after work.

How Soundproof are Impact Windows

How Soundproof are Impact Windows

Impact windows are one of the most soundproof windows that you can get. They will keep sound out and noise inside, even in the midst of a hurricane. Impact windows also feature a triple-pane glass design that blocks out UV rays and helps keep your home cooler in the summer.

Impact Windows are designed to withstand the force of a hurricane. Impact Windows are made from high-performance acrylic polymer that’s been chemically treated to be extremely strong and impact-resistant. 

The windows also have tempered glass, which means that if your window does break, it won’t explode into thousands of tiny shards.

What is STC Rating of Impact Windows

The STC rating for impact windows is around 30-32, which means they block nearly all sound from passing through them. Impact windows are rated by STC (Sound Transmission Class) rating. The STC rating is a measure of how much sound can pass through a window. 

If you’re in the market for impact windows, you know that there are several options available. One of the most important things to consider when choosing a window is its STC (sound transmission class) rating. This will tell you how well it blocks noise from outside and inside your home.

What is STC Rating?

STC (Sound Transmission Class) is a rating used to measure the effectiveness of building materials in soundproofing. It’s a standardized measurement that helps you compare different materials and determine which ones are best at reducing the amount of sound that passes through them.

The higher the STC rating, the better it will be at stopping sound from entering or exiting a room. 

STC Rating of Impact Windows

The higher the STC Rating, the better your window will be at blocking out noise. The average STC Rating for impact windows is 35. However, there are some options that can block up to 45 decibels (dB) of sound while still being energy efficient.

With an average STC rating of 35, impact windows are not as effective at blocking outside noises as other types of window designs. However, they’re still great options for those living in urban areas where there may be more construction or traffic nearby.

Benefits of Impact Windows

Benefits of Impact Windows

Impact windows for your home can be a great investment. They can provide a number of benefits, and you may be surprised by how much they can improve your quality of life. Here are some of the biggest benefits:


One of the most obvious benefits of impact windows is safety. The glass in your window will help to keep intruders out, as well as keeping you safe if there’s ever an accident on your property. It also makes it easier for you to see outside without having to worry about people looking back at you.

Excellent Soundproofing

The glass is made from an impact-resistant material that absorbs sound waves, while the frame is made of high-density polyethylene (HDPE) that blocks out even more noise.

Energy Efficiency

Impact Hurricane Windows are designed to be energy-efficient, which means they help you save money on heat and cooling bills in your home or business.

Impact windows help to keep the heat inside your house during the winter, so you’ll use less energy heating up your home by keeping those chilly winds out. 

If you’re interested in saving money on energy costs and making sure that your home stays warm all year long, this is definitely a benefit worth considering.

Resistance to Weather Damage

Impact Hurricane Windows are resistant to wind pressure, which means they can stand up to windstorms and hurricanes without cracking or shattering like other window types might.


Impact windows are built to last for decades without having to be replaced, which means you’ll save money in the long run by not having to replace them every couple years like some other types of windows do.

Installation Process for Impact Windows

Installation Process for Impact Windows

Installing impact windows is an excellent investment for homeowners looking to protect their property against harsh weather conditions and improve their home’s energy efficiency. However, the installation process can be intimidating for those unfamiliar with it. In this article, we’ll break down the installation process for impact windows, step by step.

Preparing for Installation

Before the installation process begins, the contractor will conduct a thorough inspection of your windows to ensure that the impact windows are compatible with your home’s structure. The contractor will also measure the dimensions of the windows to ensure that the new impact windows fit correctly.

Removing the Old Windows

Once the preparations are complete, the contractor will remove the old windows from the frames. This is typically done by removing any screws or nails holding the old windows in place and carefully prying the window away from the frame. It’s important to take care during this step to avoid damaging the surrounding structure.

Installing the New Impact Windows

After removing the old windows, the contractor will install the new impact windows. The windows are carefully positioned and secured to the frame using screws and anchors. The contractor will also apply sealant around the edges of the window to create an airtight seal, preventing drafts and improving energy efficiency.

Cleaning Up and Inspecting

Once the installation is complete, the contractor will clean up any debris or mess created during the process. The contractor will also inspect the windows to ensure that they are properly installed and functioning correctly.

Enjoying the Benefits of Impact Windows

With the installation process complete, homeowners can now enjoy the benefits of impact windows, including protection from harsh weather conditions, noise reduction, and improved energy efficiency. Impact windows are a valuable investment for homeowners looking to improve the safety and comfort of their home.


Impact windows are not soundproof, but they do have a lot of benefits. While impact windows are not completely soundproof, they do a good job of keeping out noise from the outside. Impact windows can also last for years and still look great.

Impact windows are a great way to reduce outside noise and make your home more comfortable for everyone. They’re also simple to install, depending on the type of window you choose. 

The soundproof qualities of impact windows really can’t be understated: they really do help to make your home as quiet as possible. If you’re looking for an easy way to decrease outside noises, impact windows can be considered.

Frequently Asked Questions (Are Impact Windows Soundproof)

Do hurricane impact windows block sound?

Yes, hurricane impact windows block sound. Hurricane impact windows are designed to withstand the force of severe winds, so they’re built to be strong and sturdy. This means that they will block the noise from wind roaring outside of your home.

What type of window is most soundproof?

The most soundproof window is a double-paned one. These windows are made with two sheets of glass separated by a layer of gas (most commonly argon), which helps keep sound from traveling through the glass. They’re also designed to let in as little light as possible.

How much do hurricane windows reduce noise?

Hurricane windows reduce noise by about 40%, which means you’ll still be able to hear the birds chirping outside and your neighbor’s dog barking, but you won’t have to worry about the sound of cars going by.

Do Impact doors reduce noise?

Yes, impact doors reduce noise. Impact doors are designed to absorb the sound of the door closing and keep it inside the building. This can reduce the amount of outside noise that comes in through your door by up to 40%.

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Brendan Ratliff
Brendan Ratliff

As a soundproofing and acoustical professional, I have helped new homeowners, builders and remodelers with their projects. I also help contractors/designers learn how to properly install soundproofing in their clients homes.
I enjoy helping people understand the process of soundproofing and acoustical construction. is a one-stop solution for all of your soundproofing related questions.