Several metals are commonly used in architecture for their sustainability attributes. When selecting metals for architectural projects, considerations often include recyclability, energy efficiency in production, durability, and the environmental impact throughout their life cycle. Here are some sustainable metals frequently used in architecture:
Aluminium:
- Recyclability: Aluminium is highly recyclable, and recycling it requires only a fraction of the energy needed to produce primary aluminium. The recycling process doesn't compromise the quality of the metal.
Lightweight: Aluminium’s lightweight nature makes it easy to transport, handle, and install, reducing the overall environmental impact.
- Steel:
Recycled Content: Steel is one of the most recycled materials globally. Modern steel often contains a significant percentage of recycled content, and steel products can be recycled at the end of their life.
Durability: Steel is durable and has a long lifespan, reducing the need for frequent replacements.
- Copper:
Recyclability: Copper is highly recyclable, and the recycling process retains its original quality. Recycled copper is commonly used in architectural applications, such as roofing and cladding.
Durability: Copper is known for its durability and resistance to corrosion, contributing to a longer lifespan of architectural elements.
- Brass:
Recyclability: Brass, a combination of copper and zinc, is recyclable, and recycled brass is used in various architectural applications, including decorative elements and fixtures.
- Bronze:
Recyclability: Bronze, a combination of copper and tin, is recyclable, and recycled bronze is used in architectural elements, sculptures, and decorative features.