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PRANCE metalwork adalah produsen terkemuka sistem langit-langit dan fasad logam.

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Can lightweight aluminum panels maintain high fire ratings?

Aluminum’s low density (≈2.7 g/cm³) means panels contribute little thermal mass, but fire resistance comes from the entire assembly. Thin (0.6–0.8 mm) aluminum panels can achieve 60- to 120-minute ratings when combined with intumescent coatings, high-density mineral wool or gypsum backer boards, and fire-stop sealants. The intumescent layer absorbs initial heat flux and forms a char, while insulation provides sustained thermal resistance. Fusible suspension links and sealed joints complete the tested system. Manufacturers develop lightweight composite panels—such as aluminum-magnesium alloys or honeycomb core designs—specifically evaluated under ASTM E119 or EN 1364-2. These assemblies leverage engineered core materials that contribute both structural rigidity and fire barrier properties. Therefore, even the lightest aluminum panels can meet stringent fire rating requirements when integrated into a certified system.


Can lightweight aluminum panels maintain high fire ratings? 1

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