With an acoustical design load rating of 36 lbs per isolator, the RSIC-1 clip can support up to two layers of 5/8 in. gypsum board when spaced at 24 in. x 48 in. oc. For heavier systems increase the number of isolators to support the additional weight of the system. The RSIC-1 clip fastens directly to the framing or structure creating a 1-5/8 in. cavity between the face of the framing and the back of the gypsum board.