PRANCE metalwork is a leading manufacturer of metal ceiling and facade systems.
What’s the Fire Rating of Aluminum Composite Wall Panels in Facade Use?
Aluminum composite wall panels (ACM) consist of thin aluminum skins bonded to a core material that determines their fire performance. Standard polyethylene (PE) core panels typically meet EN 13501-1 classification B-s1, d0 or NFPA 285 when tested in façade assemblies, but are limited in high-rise applications. For enhanced fire safety, specify fire-rated mineral (A2) core panels: these achieve Euroclass A2-s1, d0, indicating limited combustibility, no flaming droplets, and low smoke production.
In North America, ACM façade systems must comply with NFPA 285 for vertical and horizontal fire spread. Fire-rated panels with mineral cores can pass NFPA 285 when assembled with non-combustible insulation and proper cavity barriers. Canadian Standard CAN/ULC S134 also governs fire propagation for exterior walls; boards with a mineral core typically meet these requirements. Always review manufacturer’s test certificates and building code approvals for your jurisdiction.
During installation, maintain continuous fire barriers at floor lines, window perimeters, and service penetrations. Use non-combustible sealants and backer rods to close gaps. Regular inspections of joint integrity and sealant condition will ensure the façade retains its fire performance over the building’s lifespan. By selecting mineral-core ACM panels and adhering to standardized test protocols, you can achieve a safe, code-compliant aluminum façade.