Underlayment Resists Fire and High Temperatures

Polystick XFR is a self-adhered waterproofing underlayment that is designed to resist fire and high temperatures.
Polystick XFR is a self-adhered waterproofing underlayment that is designed to resist fire and high temperatures.

Polyglass U.S.A. Inc. has released Polystick XFR, a self-adhered waterproofing underlayment. The product combines Polyglass’ ADESO and Burn-Shield technologies to achieve UL Class A fire ratings for combustible decks while providing long-term weathering performance. Utilizing ADES Dual-Compound Self-Adhered Technology for labor-saving application, Polystick XFR features an SBS (elastomeric) modified bitumen upper compound and an aggressive self-adhesive compound on the bottom. Fiberglass reinforcement provides additional strength and stability. The penetration-resistant underlayment is rated to withstand temperatures up to 265 F. Because Polystick XFR is designed for high-temperature applications, it is suitable for metal roof coverings, like steel, copper and similar materials. It also is approved for use under asphalt shingles, mechanically attached tiles, and any other application where fire resistance is needed or desired.

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