United States / Build / PolyAnchor XFR mechanically fastened reinforced modified bitumen anchor membrane underlaym
PolyAnchor XFR mechanically fastened reinforced modified bitumen anchor membrane underlaym
This is a listed roofing assembly. Listing 8180-2305:0504. This site cites ASTM E108 / UL 790. Match the model and orientation.
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)
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Documented attributes
Each value below points to its field-level manufacturer, official-listing, test-report, or standard-body evidence.
| Attribute | Value | Evidence source |
|---|
| Form |
|---|
| Assembly role | roof underlayment | CAL FIRE OSFM Building Materials Listing — 8180-2305:0504 (official-listing · Listing 8180-2305:0504, Description field)PolyAnchor XFR and *Eagle Anchor XFR mechanically fastened reinforced modified bitumen anchor membrane underlayment. |
Specification notes
- Listing is from the OSFM WUI handbook. Confirm the live GOVmotus record and the exact model before specification.
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.