Aluminium, alu-zinc or stainless steel
The robust choice — aluminium, alu-zinc or stainless steel. It carries mechanical loads, withstands weather and high temperatures, and seals the insulation safely inside a bright metal shell that can last 30-50 years.
Key figures
Thickness
0.5–1.0 mm typically
Materials
Aluminium (Al99.5), alu-zinc, stainless 304/316
Temperature limit
Practically none — the sheet withstands over 400 °C
Fire class
A1 (aluminium) or A2 (alu-zinc) — non-combustible
Emissivity
0.13 (bright) to 0.28 (matte)
Typical brands
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