This document provides product information for FR POLYMINIUM 201, a fire-rated roofing material produced by San Miguel Yamamura Woven Products. The material consists of an aluminum foil layer laminated between polyethylene tie layers and a woven fabric. Specifications are provided for roll dimensions, fire performance classification, tensile strength, bursting strength, puncture resistance, and system thermal resistance. Testing methods are referenced from standards organizations. Construction details note air gap parameters used in thermal resistance testing and warnings about potential corrosion affecting properties in certain conditions.