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How do you insulate windows from noise? 

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The glass panels can potentially be of great value in the development of noise-blocking glass windows for homes close to airports and noisy highways.
To reduce the noise transmitted through the double-wall aircraft windows to acceptable levels, changes in the design of the aircraft window are recommended.
External windows rather than internal windows should be insulated because the air cavity is cool.
These windows are able to provide an additional 8 dB traffic noise reduction than the conventional casement windows, but at the same time they can allow for natural ventilation of the residential units they protect acoustically.
The controllable doors cement walls, glass windows and incubators inside a closed space might contribute to this higher noise level.
This difference is not due to any substantive increase in low-frequency noise reduction of acoustically treated homes, but may be associated with installation of nonrattling windows.
Simulations demonstrate the effectiveness of the windows on a variety of different channels and noise sources.

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