Home / Materials / PolyAnchor XFR mechanically fastened reinforced modified bitumen anchor membrane underlaym

PolyAnchor XFR mechanically fastened reinforced modified bitumen anchor membrane underlaym

Name: PolyAnchor XFR mechanically fastened reinforced modified bitumen anchor membrane underlaym
Brand: Polyglass USA, Inc.

This is a listed roofing assembly. Listing 8180-2305:0504. This site cites astm-e108-ul-790. Match the model and orientation. A listing is not a permit.

PolyAnchor XFR mechanically fastened reinforced modified bitumen anchor membrane underlayment. Refer to listee's data sheet for additional detailed product description and operational considerations. Approved systems: Class A: Deck: C-15/32 or spaced sheathing Incline: Unlimited Base Sheet: One ply Polyanchor XFR, mechanically fastened Surfacing: Eagle Capistrano Concrete Tile, Eagle Bel-Air Concrete Tile, Boral "S" Clay Tile, or Boral 2-Piece Mission Cap & Pan Clay Tile, mechanically fastened.

Kind: listed-assembly. Brand: Polyglass USA, Inc.. Listing evidence: OSFM WUI handbook 2026-08-25. Page reviewed 2026-08-26. JSON (CC BY 4.0)

Documented attributes

Each value below points to its field-level manufacturer, official-listing, test-report, or standard-body evidence.

Attribute	Value	Evidence source
Assembly role	roof underlayment	CAL FIRE OSFM Building Materials Listing — 8180-2305:0504 (official-listing · Listing 8180-2305:0504, Description field)

Program	ID / source	Evidence date	Expires	Status
CAL FIRE BML	8180-2305:0504 · Search BML for 8180-2305:0504	2026-08-25	2027-06-30	listed

Tests and programs cited

ASTM E108 / UL 790 · test-method
OSFM BML · listing-program

Listing is from the OSFM WUI handbook. Confirm the live GOVmotus record and the exact model before specification.
OSFM listing is not a permit. The authority having jurisdiction decides.

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Sources

2025 OSFM WUI Listed Products Handbook (2 September 2025) — CAL FIRE OSFM (official). Accessed 2026-08-23.
OSFM Building Materials Listing search — CAL FIRE OSFM (listing-body). Accessed 2026-08-23.

PolyAnchor XFR mechanically fastened reinforced modified bitumen anchor membrane underlaym. FireApproved. https://fireapproved.com/materials/polyglass-usa-inc-polyanchor-xfr-mechanically-fastened-reinforced/. Last verified 2026-08-26.