System for retrofitting a wall to increase sound attenuation with first and second walls and studs between having third wall attached via damping members

摘要

A retrofit wall system (600) and a method for retrofitting a preexisting wall to increase sound attenuation characteristics includes resiliently mounting construction members (608) onto a preexisting wall surface and mounting a new wall surface (for example, drywall) thereover. It is desirable to provide insulation (612) (thermal and/or acoustic) between the construction members to further increase sound attenuation. The construction members may be conventional members (606) (for example, a 2"x4" (5.08 cm x 10.16 cm)) resiliently mounted using a resilient channel or web (610), or they may simply be resilient members directly fastened to the new and old wall surfaces, respectively.