Can the USG Drywall Suspension System be substituted in UL assemblies that call for resilient or hat channel when insulation is installed in the cavity?
The USG Drywall Suspension System, classified by UL, is the only drywall suspension system that can be used in lieu of furring and resilient channels in most two hour fire-rated assemblies that allow glass fiber or mineral wool insulation in the concealed space, where the protective membrane consists of a single layer of 5/8 SHEETROCK Brand FIRECODE Core Gypsum panels. The USG Drywall Suspension System can be installed at 16 o.c. with insulation applied directly over the gypsum membrane to achieve an STC of 50 or higher.
