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| Sound Reduction |
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 Noise, just like a burglar, gains easiest entry to automobiles, homes and buildings through windows. Laminated glass has proven to be an excellent barrier to noise, having a higher sound reduction index than monolithic glass of equal thickness between the frequencies of 125 Hz and 4,000 Hz. This sound dampening is due to the viscoelastic properties of the interlayer material. The coincidence effect experienced with monolithic glass at certain frequencies is also considerably reduced with laminated glass, and the noise reduction performance of insulated glass (IG) units can be greatly improved by incorporating at least one layer of laminated glass.
Projects where sound reduction can be important include:
- Airports (See project example here.)
- Libraries
- Office buildings
- Homes
- Automobiles
For projects where sound reduction is a primary design objective, laminated glass made with DuPont™ SentryGlas® Acoustic™ interlayers provides added sound reduction.
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