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Do Aluminum Walls Offer Better Fire Resistance Than Drywall Boards?

Both aluminum panels and fire-rated gypsum wallboard offer non-combustible properties, but aluminum walls bring unique fire performance benefits when specified correctly. Gypsum board relies on tightly bound water molecules within its core to resist fire; once the core dehydrates, fire can penetrate. Aluminum panels, constructed from non-combustible alloys, do not release combustible gases or degrade structurally under direct flame exposure. When integrated into tested fire-rated wall assemblies—complete with mineral wool insulation and fire-resistant seals—aluminum panels maintain their shape and integrity without spalling.


Do Aluminum Walls Offer Better Fire Resistance Than Drywall Boards? 1

Moreover, aluminum’s high thermal conductivity can help distribute heat away from points of fire contact, slowing localized temperature spikes. The absence of organic binders or paper facers eliminates smoke-producing materials, aiding safe egress. While individual panel ratings depend on assembly tests (ASTM E119 or EN 1364-1), properly engineered metal wall systems can achieve up to two-hour fire resistance, matching or exceeding many Type X gypsum installations. For buildings requiring both stringent fire safety and the clean aesthetics of metal facade interiors, aluminum walls provide a compelling, code-compliant solution.


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