Clera Windows + Doors Blog

6 Ways You Can Soundproof Your Windows

Sound is not necessarily a bad thing, but it becomes a nuisance when you are unable to control it, at which point it becomes noise. Loud and unusual sounds at the wrong place and time can be distracting and stressful, making it impossible to sleep, work, or study, and if prolonged, can be detrimental to your health.

The best ways to manage noise are by eliminating it at the source and moving further from the source. But this is not always possible, like when you live near a nightclub, pub, a busy road in the city, or a construction site, or have loud neighbours, and don’t want to rely on earplugs or noise-cancelling headphones. On the other hand, perhaps you have a noisy hobby or occupation (like music recording) and don’t want to disturb your neighbours.

Whichever the case, you have decided that soundproofing your windows is the best way forward. First, you should note that sound travels from outside to inside a room through the air or through structural elements. This means that you will be looking to reduce the sound vibrations that make it past your windows, and eliminating any opening around the windows that allow sound to travel directly into your home or office.

Here are some ideas to soundproof your walls:

  1. Draft Proof

    Any openings that allow cold air into your rooms also provide a direct route for outside noise to get indoors. Sealing around the perimeter of your windows ensures that any openings are completely blocked, stopping outside noise from entering, as well.

    You can improve noise insulation by using compression seals rather than brush seals. The former are soft seals that completely fill the space between the window and the frame; plus, they can be fit on both sides of the window to maximize weatherproofing and sound insulation.

    Filling any gaps with caulk can reduce noise by up to 50 per cent.

  2. Install Acoustic Glass

    If you have the finances to replace your existing windows, consider installing acoustic glass. It is thicker than standard glass as it contains a soft plastic ‘interlayer’ designed to absorb sound waves, which significantly minimizes the noise passing through.

    Acoustic glass is claimed to reduce sound in the room by about 10 decibels. 10 decibels (dB) is equivalent to the sound of rustling leaves in the distance.

    Here is some data for comparison purposes:

    • The sound pressure level (dB) of a quiet library is 40 dB
    • A typical home is 50 dB
    • Conversational speech 1 meter away is 60 dB
    • A vacuum cleaner is 70 dB
    • Curbside of a busy road 5 m away is 80 dB
    • A Diesel truck 10 m away is 90 dB
    • A chainsaw 1 m away is 110 dB
    • Threshold of discomfort is 120 dB
    • Threshold of pain is 130 dB
    • An aircraft 50 m away is 140 dB

    So, 10 db can mean the difference between pain and discomfort.

    Additionally, acoustic glass is much stronger and harder to break than regular glass, making it a lot safe as well.

  3. Glazing Variations

    Single glazing and even standard double glazing may not provide sufficient sound insulation. You can improve sound reduction by providing better sound blockage with glass panes of greater density and thickness in your double glazing windows.

    Choose two glass panes with different thickness; one should preferably be acoustic glass to optimize sound insulation.

  4. Install Soundproof Windows

    Specially made soundproof windows are made with double- or triple-pane glass that blocks sound from getting through. But if you don’t want to replace your existing windows, you can consider using an insert that fits in the window frame from the inside to block sound without compromising on daylight or window transparency. To maximize soundproofing, the measurements must be as precise as possible for a tight fit.

    However, this insert can interfere with the function of existing window treatments, and you may need to replace them accordingly.

  5. Use Window Plugs

    You can make window plugs yourself by cutting a 2-inch thick foam acoustical mat to a size that is slightly bigger than your window frame and placing it onto the frame. Allow some space between the plug and glass since the air improves sound deadening.

    However, window plugs are opaque, meaning that they will block out natural light and the view. For this reason, they are best used to soundproof bedrooms. If you need natural lighting, simply remove the plug.

  6. Use Acoustic Curtains

    Acoustic or soundproof curtains look like normal window treatments, except that they contain a lining or other material inside the curtain with soundproofing qualities, such as MLV (mass-loaded vinyl). Replacing your existing curtains with acoustic curtains is a quick and easy way to reduce the amount of noise passing through. However, they are usually heavy, and require special mounting hardware.

    Standard heavy curtains also offer some level of soundproofing as the fabric absorbs some of the sound. Those with an accordion effect increase the sound absorbing effect.

Final Note

Lastly, keep in mind that any space that allows air to infiltrate your home, including windows, doors, vents, and mail slots, can also let through sound. So, make sure that these openings are completely eliminated to enjoy a noise-free interior.

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