Gypsum Board:รก Nom 5/8 in. thick, 48 in. wide, installed with
long dimension perpendicular to resilient channels with 1-1/8 in. long Type S
screws spaced 12 in. OC and located a min of 1/2 in. from side joints and 3
in. from the end joints. At end joints, two resilient channels are used,
extending a min of 6 in. beyond both ends of the joint. When insulation, Item 3 or 3A, is draped over
the resilient channel/gypsum wallboard ceiling membrane, screws shall be
installed at 8 in. OC.
Types FSW-G, FSW-C.