Effective fire resistance depends on combined thickness of aluminum panel (0.7–1.2 mm) plus backing insulation (gypsum or mineral wool layers totaling 25–50 mm per hour rating).
Certifed fire-rated suspension systems use galvanized steel grids with fusible links or fire rods, engineered to collapse and seal plenum openings at target temperatures.
Check for manufacturer test reports (ASTM E119/UL 263 or EN 1364-2), labeled components, installation guides, and third-party certification markings on packaging and submittal documents.
Acoustic insulation in aluminum ceilings—mineral wool or fiberglass—doubles as a thermal barrier, complementing fire-rated assemblies when tested together.
Fire-rated ceilings integrate tested assemblies—panels, insulation, sealants, and suspension systems—to satisfy local and international building codes for fire safety.