US Patent 8178449 Fire resistant slipsheet

A fire resistant slipsheet in roll form includes a fiber mat having first and second sides and a coating containing expandable graphite, a filler, and a binder. The coating is coated on at least one of the first and second sides of the fiber mat, and a single layer of the slipsheet achieves a Class A rating when tested according to UL 790 and/or ASTM E-108 Standard Test Methods for Fire Tests of Roof Coverings. A fire resistant roofing system and a method for installing a fire resistant roofing system that achieves a Class A rating when tested according to UL 790 and/or ASTM E-108 Standard Test Methods for Fire Tests of Roof Coverings is also provided.