Can you add a 2nd window for soundproofing?


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Old 12-04-22, 09:27 AM
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Can you add a 2nd window for soundproofing?

I have double pane windows, but they do not keep the noise out.
I was thinking to add the same windows with 2x4 inside the wall over the existing windows with a gap between.
Would this work?
Any thoughts from the pros?
 
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Old 12-04-22, 09:45 AM
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It will help. But how much it will help is hard to say.
 
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Old 12-04-22, 10:03 AM
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Will there be an issue with the heat trapped between the two windows since both have Low-E glass.
 
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Old 12-04-22, 10:11 AM
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Possibly, most mfg will not warranty such an installation due to that possibility.
 
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Old 12-04-22, 10:14 AM
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I am not worried about warranty.
 
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Old 12-04-22, 01:40 PM
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Will there be an issue with the heat trapped between the two windows
Between the individual panes or between two windows, I doubt there is any kind of a heat issue!

What is it your trying to block? I don't recall ever hearing of anybody trying to add double windows for any reason.

Maybe try some heavy curtains?
 
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Old 12-04-22, 02:17 PM
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I hate curtains especially when they are closed during the day.
 
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Old 12-04-22, 04:43 PM
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There are both window companies and aftermarket companies that offer sound performance windows that are essentially one window over another in the same opening. So can you do it? Yes, it is a real thing.

Is it the best option? Depends on your circumstances. Why do you want double hung over double hung?

As an example, adding an internal fixed panel, especially if it's laminated glass, will likely beat the performance of adding a double hung over a double hung.

What are you trying to stop and how many and how large are the windows? What kind of condition are they in?
 
 

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