Home / Materials / DuPont™ ArmorWall™ Plus structural insulated sheathing
DuPont™ ArmorWall™ Plus structural insulated sheathing This is a listed siding assembly. Listing 8170-2425:0001. This site cites cal-fire-bml. Match the model and orientation. A listing is not a permit.
Listed · limited evidence. Active CAL FIRE BML listing 8170-2425:0001, expires 2027-06-30 (verified against the live BML 2026-08-25). Limited evidence: a single positive channel so far — more programs or documentation may still move this record.
▲ CAL FIRE BML 8170-2425:0001 · active
Status derived from the cited listings by a published rule, never hand-assigned. Each chip
above is one evidence channel and its direction. A listing is not a permit — the authority
having jurisdiction decides.
DuPont documents ArmorWall Plus as a structural insulated sheathing panel with a 1/2-inch magnesium-oxide facer and fused polyurethane insulation, in 4-by-8-foot panels. CAL FIRE OSFM listing 8170-2425:0001 covers the configuration with up to 2.25 inches of insulation fused to the facer, for a nominal maximum overall thickness of 2.75 inches.
Kind: listed-assembly.
Brand: DuPont Performance Building Solutions . Listing evidence: OSFM WUI handbook 2026-08-25.
Page reviewed 2026-08-25. JSON (CC BY 4.0)
Documented attributes Each value below points to its field-level manufacturer, official-listing, test-report, or standard-body evidence.
Models named on the listing Model Application ArmorWall Plus 2-inch panel exterior wall sheathing; 1/2-inch magnesium-oxide facer with 1-1/2-inch insulation ArmorWall Plus 2-3/4-inch panel exterior wall sheathing; 1/2-inch magnesium-oxide facer with 2-1/4-inch insulation
Match the overall panel thickness, magnesium-oxide facer, insulation thickness, coating, fasteners, joints, water-resistive barrier, and wall assembly to OSFM listing 8170-2425:0001 and current DuPont instructions. Fire-resistance claims apply to complete assemblies, not this panel alone. OSFM listing is not a permit. The authority having jurisdiction decides. Can I use this here
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The rule and every matching product for the United States
Save to my house How this product meets each requirement (16)
Requirement constraints (16)
Each table below compares this product's documented attributes against one published
requirement. That comparison is a fact about the product and the requirement, and does not
change from place to place, so it is printed once.
Requirement constraints (16)
Each table compares this product's documented attributes with one published
requirement. That comparison does not change from place to place, so it is printed
once here and linked from every jurisdiction below.
IWUIC Class 1 wall-base protection undocumented Field Required Documented value State Assembly role Assembly role = wall base protection Not documented undocumented Height Height ≥ 6 in Not documented undocumented Noncombustible Noncombustible = Yes Not documented undocumented
California SFM 12-7A-1 wall undocumented Field Required Documented value State Test standard Test standard = sfm 12 7a 1 Not documented undocumented
Colorado CWRC wall-base protection undocumented Field Required Documented value State Assembly role Assembly role = wall base protection Not documented undocumented Height Height ≥ 6 in Not documented undocumented Noncombustible Noncombustible = Yes Not documented undocumented
Kittitas IR1 one-hour wall undocumented Field Required Documented value State Fire resistance Fire resistance ≥ 60 min Not documented undocumented
Kittitas Table 503.1 N.C. wall undocumented Field Required Documented value State Fire resistance Fire resistance ≥ 60 min Not documented undocumented Noncombustible Noncombustible = Yes Not documented undocumented
2006 Utah UWUI Table 503.1 N.C. wall undocumented Field Required Documented value State Fire resistance Fire resistance ≥ 60 min Not documented undocumented Noncombustible Noncombustible = Yes Not documented undocumented
Where this applies
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DuPont™ ArmorWall™ Plus structural insulated sheathing. FireApproved. https://fireapproved.com/materials/ddp-specialty-electronic-materials-us-llc-duponttm-armorwalltm-plus/. Last verified 2026-08-25. Verify at the source. Every listing number and claim here links to its origin — listings change and local amendments govern, so check the current record before you specify.