Window Fitters Guide to Window Installation 138 ©2022 AWDI, LLC Do not reproduce without permission Windows and doors have always been center to the separation of the outside environment and the inside living area, but the benefits have usually been limited to cold, heat, sun, rain and other weather related variables. Exterior noise is becoming more of a focus when improving homes because noise pollution becomes more of a problem as areas become built up and traffic and other transportation caused noise is being identified as harmful. The trend began from two sources. One has been the need to help homes built around airports to insulate the living areas from the noise of big jets taking off and landing. The other has been the unexpected benefit of improving glass technologies either by multiple panes for energy efficiency or lamination for protection against impact breakage. Sound travels through windows and doors via air infiltration (think of an open window ver- sus a closed one) through the unit and due to vibrations in the window's glazing and frame components. To reduce sound transmission, improvements can be made to include weather stripping to reduce air infiltra- tion, using multiple panes of glass and other materials of varying thickness, and even adding a storm window (inside or out) to create an additional barrier. So, interrupting the sound path by interrupting air flow, or vibration path or decreasing sympathetic vibration by increasing the space between surfaces or making touching surfaces of unequal thickness are the most effective methods. Singularly they can make a dif- ference. Combining the options in window and door systems can make the noisiest outside environments quiet on the inside of the building. MONOLITHIC GLASS LAMINATED GLASS ASSYEMTRICAL GLASS LAMINATED INSULATING GLASS INSULATING GLASS & SEPARATE PANEL TRIPLE LITE INSULATING GLASS TYPES OF SOUND CONTROL GLAZING Installing Sound Control Windows SAMPLE MANUAL
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