Resilient Drywall Isolation Clips Out-Perform Traditional Resilient Channels in Sound Rated Walls/Floors & CeilingsDecoupling of gypsum board in stud wall systems to improve Sound Transmission Class (STC) can be done several ways. One way is to construct staggered stud walls on 2" x 6" soleplates. A second method is to build independently supported double walls with an air space in between. A third design utilizes resilient channesl for attachment of gypsum board panels to the supporting structure without directly contacting the framing. Although the original 1/2" thick 25 gauge resilient channel developed by USG in the 1960's went through rigorous testing, untested modified channel designs have pervaded the market. Performance of resilient channels is also dependent on the alignment of the centerline of the slotted attachment holes. Another common installation error is to screw completely through the resilient channel into the framing.