Damping is often obtained by modifying the resonant frequency by way of both the addition of the hefty elastomeric substance into the surface, or by implementing a thin visco-elastic polymer guarded that has a dead comfortable aluminum foil facer named a Constrained Layer Damper (CLD). Weatherization Good weatherization techniques assist https://noisepollution41338.izrablog.com/35142734/the-custom-fit-windows-diaries