What Fire-Rated Options Exist for Aluminum Ceiling Planks?

While solid aluminum planks are noncombustible, composite and perforated varieties require additional fire-rated components to meet strict building codes. Fire-rated aluminum planks typically incorporate a noncombustible mineral board or gypsum backer beneath the aluminum face, forming a sandwich panel tested to ASTM E84 for flame spread and smoke development. These assemblies achieve Class A ratings (flame spread ≤25, smoke ≤50). For hourly fire resistance, full-scale ASTM E119 tests verify one- or two-hour integrity and insulation ratings when assemblies are installed with approved perimeter trims and joint seals. Acoustic planks can also be fire-rated by adding intumescent layers that expand under heat to seal gaps. Manufacturers provide UL- or Intertek-listed systems complete with documentation for all components—planks, suspension, perimeter channels, and sealants—ensuring compliance. Architects specify fire-rated options for corridors, egress paths, and high-occupancy areas to protect both life safety and property.