WCD is installing resilient channels at Arroyo del camino apts. (RC-1 Pro) is one of the most effective, low-cost methods of decreasing sound transmission at wood and steel frame partitions. It can be used as a cross-furring member for resilient attachment of gypsum as Resilient Channel is pre-punched for screw attachments to wood or steel framing members. This is another way (value engineering) to reduce the cost of two walls at the party wall or another layer of drywall at the floor/ceiling in Hotel and apartment construction.