Polystick® XFR
Polystick® XFR is a dual-purpose fire resistant and self-adhered waterproofing underlayment approved for applications up to 265°F.
This underlayment features our patent-pending Burn-Shield Technology™, which offers fire resistance capable of achieving the highest level of fire ratings.
Polystick XFR's superior protection against fire spread and penetration resistance makes it an ideal underlayment for metal roof covering systems like steel, copper, and similar materials.
For more information on Polystick XFR visit https://polyglass.us/xfr