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Titanium
RHEINZINK-CLASSIC is a bright-rolled titanium-zinc alloy (titanium and copper added to high-grade zinc per EN 988) that has been used for over 50 years in building applications. The naturally shiny metallic surface develops a protective blue-grey patina over time depending on climatic conditions, creating a self-healing corrosion-resistant finish that gives individual character to each building.
Suitable for facade cladding, roof covering, and internal lining using seaming and soldering techniques. The material is classified as building material class A1 (non-combustible) and is commonly paired with glass and concrete in museum and cultural building typologies. Standard thicknesses range from 0.65 to 1.0 mm (up to 1.5 mm available), delivered as sheets up to 6 m long or coils up to 5 tonnes, with a density of 7.2 g/cm3 and minimum tensile strength of 150 N/mm2.
Titanium-zinc production requires electrolytic processing and alloying that carries embodied carbon; Environmental Product Declarations (EPD) are available for the material (2024-2029 certification) and should be consulted for specific project carbon accounting. The patina formation process extends the material lifespan indefinitely, offsetting initial embodied impacts through durability, but primary manufacturing energy remains a consideration in lifecycle assessments.
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