Polyglass Polyanchor XFR Underlayment 39-3/8" x 65' 8"

The Polyglass Polyanchor XFR Underlayment 39-3/8" x 65' 8" is a ice & water underlayment for jobs that require Polyglass model/MPN PAXFR in the RL sell unit. Polyanchor XFR is a fire-rated dual purpose ember and water resistant underlayment.

Key Specs

• Brand: Polyglass
• Model / MPN: PAXFR
• SKU: POLPAXFR
• Sell unit: RL
• Product type: Ice & Water Underlayment
• Size / color: 39-3/8" x 65' 8"
• Category: Residential Roofing | Residential Roofing/Underlayment | Residential Roofing/Underlayment/Ice & Water Underlayment | Underlayment | Underlayment/Ice & Water Underlayment
• Coverage / unit: 2 squares (200 sq ft) per roll

Key Features

• Patented Burn-Shield Technology provides superior ember resistance
• Meets CA code requirements - Class A Fire Rated ember resistant underlayment for WUI (Wildland Urban Interface)
• Fiberglass mat provides increased strength and fire resistance
• Mineral aggregate surface engineered for superior slip resistance
• Tough plastomeric modified asphalt top compound for tile stacking
• Self-sealing elastomeric modified asphalt bottom. Compound

Coverage & How Much You Need

This item is listed as 2 squares (200 sq ft) per roll. Use the project takeoff, manufacturer installation instructions, and expected waste/overlap to confirm the order quantity.

Compatibility / Fitment

Use this item only when the brand, model/MPN, size/color, sell unit, and system type match the project specification. Do not substitute it for a different ice & water underlayment, pack size, color, membrane/system family, or installation condition without checking the manufacturer instructions.

FAQs

What exactly am I ordering?

Polyglass Polyanchor XFR Underlayment 39-3/8" x 65' 8", sold as RL, with SKU POLPAXFR and manufacturer model/MPN PAXFR.

What model or part number should I match?

Match model/MPN PAXFR and confirm the brand is Polyglass. If the job spec lists a different model, size, color, or system family, hold for review.

What unit is the price based on?

This listing is built around the RL sell unit. Confirm the unit before comparing price, quantity, or coverage.

How do I estimate quantity?

Use 2 squares (200 sq ft) per roll, then add waste or overlap per the manufacturer instructions and the project design.

What should be checked before purchase?

Confirm the model/MPN, sell unit, size/color, jobsite condition, compatible system components, and any manufacturer installation limits before approving the order.

Roofing and exterior-envelope work can involve fall hazards, weather exposure, fumes, adhesives, and system-specific installation requirements; follow the manufacturer instructions, OSHA-safe work practices, and local code or use a qualified contractor.

Product Expert Notes

Choose this item when Polyglass model/MPN PAXFR, SKU POLPAXFR, and the RL sell unit match the project requirement. It is best treated as an exact-match material selection, not a generic substitute.