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Noise pollution can be a real problem, especially for homes located on busy streets, near trains, or close to airports. Too much noise pollution can lead to more stress, less sleep, and reduced motivation and productivity. Luckily you can use replacement windows in Long Beach, CA to help soundproof your property. With the right features, your new windows can be powerful noise reduces, blocking up to 95 percent of outside sound.

How is Noise Reduction Measured?

Modern replacement windows have a lot of ratings so customers can easily compare products. For noise reduction, homeowners need to consider the sound transmission class (STC). This rating measures the window’s ability to reduce unwanted outside noise. Commonly used windows have ratings that range from 18 to 38. But modern windows specifically designed for soundproofing have ratings in the 40s and 50s. Higher STC ratings mean better soundproofing.

Ways Replacement Windows Reduce Sound

Several factors contribute to a window’s potential to stop the noise, including:

Number of Panes

When it comes to noise transmission, two panes are better than one. Fortunately, most modern windows feature double glazing. And you would think that adding another layer of glass would increase sound-proofing. But it turns out that isn’t always the case. Windows with triple glazing only perform slightly better than double glazing. There are other factors that dampen noise.

Glass Thickness

One of the leading factors of high STC ratings is the glass thickness. As you can probably guess, thicker glass can cancel out more sound. This is why soundproofing windows almost always cost more. Another option is dissimilar glass. Most double pane windows have glass panes that are the same thickness. With dissimilar glass, each pane has a different thickness to cancel out specific frequencies.

Laminated Coatings

Laminated coatings were meant to improve the impact resistance of windows. The polyvinyl butyral (PVB) interlayer is that helps keeps the glass largely intact upon impact. But an added benefit is it also reduces vibrations and cuts down on unwanted noise.


Basically, most windows have two panes of glass spaced and sealed to improve insulation and energy savings. But the space between the panes of glass also works to deaden noise. Wider spaces on insulated glazing units (IGUs) result in less noise transmission.

Frame Materials

The window frame material is another factor that can contribute to STC ratings. Vinyl and wood windows often perform the best. Steel and aluminum reduce noise less efficiently.

Window Style

Style is another factor. For better sound performance you want windows with a higher glass-to-frame ration. Basically slimmer frames achieve higher STC ratings.

Windows with an STC rating between 40 and 50 might be necessary for a recording studio or sound booth. But for most homeowners looking to dampen outside noise in the home, an STC rating between 26 and 32 is often more than sufficient.

If you want to soundproof your home with replacement windows in Long Beach, CA contact the experts at Seaport Windows and Doors. We can help you find the right solutions for your home and budget. For more information contact us at (714) 220-3939 or 4201 Katella Ave., Los Alamitos, CA 90720.