Soundproof Windows Mitigate Exterior Noise
A soundproof window is an acoustically engineered window that is installed behind an existing window to work as a noise barrier. The laminated glass used in the window's construction performs better in blocking sound waves than the type of glass used in conventional windows. The manner in which the sound-blocking window is installed helps in sound reduction as well. These types of windows are typically used for residential applications as a way to mitigate exterior noise.Laminated Safety GlassAlso known as safety glass, laminated glass is constructed by sandwiching an interlayer of Polyvinyl Butyral (PVB) between two layers of glass. The technology was developed as a way to keep glass from breaking into harmful shards when impacted. It's commonly used in automobile windshields and skylights. Laminated glass is also used to help preserve window integrity in areas subject to high winds. The PVB layer blocks virtually all ultraviolet (UV) radiation as well, making it a useful type of application for sun-facing windows.Sound travels in a sequence of waves that vibrate as they pass through materials like walls and windows. The PVB interlayer in laminated glass dampens these vibrations, effectively reducing the amount of noise that passes through the window. Soundproof Window Construction Although double-pane windows offer better sound insulation than single-pane models, because the dual panes are encased in the same window frame, they vibrate together when sound waves pass through them. Placing a second window behind the existing window provides an effective, isolated secondary barrier against sound vibrations. The air space created between the conventional window and the second window also enhances sound reduction. Because different thicknesses of glass dampen different sound waves, the thicker laminated glass blocks out sounds that conventional glass cannot. Applications Sound-mitigating windows are most often used in residential applications by people who live in noisy environments, such as apartments or homes built near freeways or railroad train tracks. The windows are also often installed in public buildings like schools and libraries to ensure a quiet indoor environment. Because there is no need to replace the existing windows, they provide an affordable alternative to window replacements. The additional benefits of soundproof windows, which include UV ray protection, enhanced security, better insulation and higher energy efficiency, make them the optimal choice for a variety of applications.
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