Fiberock

USG has introduced Fiberock brand Aqua-Tough exterior sheathing, designed for use in water-managed Exterior Insulation and Finish Systems (EIFS), as well as a variety of other exterior applications. It delivers two performance benefits: integral water resistance and built-in drainage channels. The Aqua-Tough gypsum/cellulose fiber formulation makes the entire sheathing panel water resistant. As a result, no facing layer is needed to add strength or provide a primary water barrier.