Galvalume R-Panel combines the strength of steel with the corrosion resistance of aluminum and zinc, offering long-lasting performance in demanding environments. This triple-layer protection makes it highly resistant to rust, abrasion, and weathering.
Introduced in the early 1970s, Galvalume revolutionized the construction industry by providing a superior alternative to galvanized steel for metal roofing systems. Its enhanced lifespan and durability quickly made it a trusted choice for builders and manufacturers.
Galvalume R-Panel has become the dominant substrate in the metal roofing industry, now used in more than 90% of installations. Its widespread adoption is a testament to its unmatched performance in resisting corrosion and maintaining structural integrity.
Galvalume is produced by hot-dipping a cold-rolled carbon steel base into a specialized aluminum-zinc alloy coating composed of 55% aluminum, 43.4% zinc, and 1.6% silicone. This composition ensures superior corrosion resistance and long-term durability for exterior applications.
Galvalume R-Panel combines the strength of steel with the corrosion resistance of aluminum and zinc, offering long-lasting performance in demanding environments. This triple-layer protection makes it highly resistant to rust, abrasion, and weathering.
Introduced in the early 1970s, Galvalume revolutionized the construction industry by providing a superior alternative to galvanized steel for metal roofing systems. Its enhanced lifespan and durability quickly made it a trusted choice for builders and manufacturers.
Galvalume R-Panel has become the dominant substrate in the metal roofing industry, now used in more than 90% of installations. Its widespread adoption is a testament to its unmatched performance in resisting corrosion and maintaining structural integrity.
Galvalume is produced by hot-dipping a cold-rolled carbon steel base into a specialized aluminum-zinc alloy coating composed of 55% aluminum, 43.4% zinc, and 1.6% silicone. This composition ensures superior corrosion resistance and long-term durability for exterior applications.
Specifications
PageTitle
Galvalume R-Panel, Aluminum Zinc Coated Steel for Roofing and Exterior Structural Use
Specifications
Coating weights: AZ-50 (0.50 oz per sq. ft.) for painted products, AZ-55 (0.55 oz per sq. ft.) for unpainted or acrylic-coated products.
Acrylic-coated Galvalume provides additional protection during handling but will wear off over time.
Acrylic-coated Galvalume provides additional protection during handling but will wear off over time.
Additional Notes
Best suited for environments away from coastal salt exposure and animal confinement structures.
Standard material for roofing and wall panels in commercial and residential construction.
Standard material for roofing and wall panels in commercial and residential construction.
Applications
Used for commercial buildings, residential projects, architectural structures, industrial applications, and agricultural storage.
Ideal for non-coastal hurricane zones, high-rainfall areas, high-temperature regions, and extreme weather environments.
Ideal for non-coastal hurricane zones, high-rainfall areas, high-temperature regions, and extreme weather environments.
Limitations
Not recommended for animal enclosures due to ammonia exposure, which can degrade the Galvalume coating.
Not recommended for coastal environments, as salt exposure leads to premature corrosion.
Not recommended for coastal environments, as salt exposure leads to premature corrosion.
Disadvantages
Prone to oil canning, which causes waviness in flat panels (only aesthetic, does not affect performance).
Should not be used in direct contact with copper, lead, bricks, treated lumber, iron, or concrete to avoid galvanic corrosion.
Unpainted Galvalume can scuff easily, which may lead to uneven weathering over time.
Should not be used in direct contact with copper, lead, bricks, treated lumber, iron, or concrete to avoid galvanic corrosion.
Unpainted Galvalume can scuff easily, which may lead to uneven weathering over time.
Advantages
25.5-year substrate warranty, with additional warranties available for paint and weathertight installation.
Corrosion-resistant with self-healing properties that help prevent red rusting at cut/exposed edges.
Easy to handle, install, and work with compared to other metals like copper and zinc.
Long lifespan of 50+ years in optimal environments.
Cost-effective and competitively priced metal roofing option.
Corrosion-resistant with self-healing properties that help prevent red rusting at cut/exposed edges.
Easy to handle, install, and work with compared to other metals like copper and zinc.
Long lifespan of 50+ years in optimal environments.
Cost-effective and competitively priced metal roofing option.
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