AL13 FR B1 Aluminum Composite Panel
This is a listed siding assembly. Listing 8140-2359:0002. This site cites ASTM E84. Match the model and orientation.
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AL13 FR B1 is a California-listed siding panel with a polyethylene core between aluminum skin face sheets.
The specified thickness is 4 millimeters. Anenda Systems Inc.'s panel has a high-performance fluorocarbon coating. Listing 8140-2359:0002, in exterior siding category 8140, identifies it as ignition resistant and cites an extended 20-minute ASTM E84 test. The FR B1 identity should stay attached to those details rather than being extended to other AL13 panels or core materials.
The handbook evidence comes from the September 2, 2025 edition of OSFM's WUI Listed Products Handbook. A later live-database observation, on August 25, 2026, found this model listed with expiry dated June 30, 2027. Verify the model and live entry before use; the manufacturer's installation instructions and product data sheets remain the installation references.