The FiberTite-XT Roll is an Xtra-Tough version of the FiberTite family of membranes. FiberTite-XT Roll far exceeds all requirements for Ketone Ethylene Ester (KEE) Based Sheet Roofing and has unmatched performance vs. competitive products. All FiberTite Roofing Membranes are constructed using high tenacity/heavy weight yarns to create a base fabric reinforcement to impart superior puncture, tensile and tear resistance properties. The base polyester fabrics are primed with a unique and proprietary adhesive coat that lays the foundation to physically bond the KEE coatings to the "fiber" to maximize seam strength and overall membrane performance. Seaman Corporation is vertically integrated, which allows complete control over the manufacturing process from the selection of the yarns, to the engineering, knitting and weaving of the base fabrics to the final coating process. FiberTite-XT Roll is coated face and back with Seaman Corporation's original "KEE" formulation to provide superior hot air welding characteristics, extreme UV resistance, broad chemical resistance and long-term flexibility and reparability for the installed roofing membrane system. Additionally, this Roll exhibits superior tear, puncture, fungus, algae and flame resistance that make FiberTite Roofing Systems some of the most sustainable roofing systems available. Field seaming of the membrane is accomplished by fusing the thermoplastic membrane with conventional hot air welding equipment.