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Roof Underlayments

Underlayment is fire resistant

Polyglass Polystick Xfr July20 1

Polyglass USA Inc.’s Polystick XFR is a self-adhered, fire-resistant roof underlayment. It works in high-temperature applications including steel and copper roofing. The roof underlayment is rated to withstand temperatures to 265 F. It has Burn-Shield technology and provides UL Class A fire ratings for combustible decks. It also has ADESO dual-compound, self-adhered technology with an SBS (elastomeric) modified bitumen upper compound and self-adhesive compound on the bottom.

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