Metal construction in the face of environmental challenges : towards a greener industry

The metal construction, often criticized for its carbon footprint, is evolving to integrate more sustainable practices. Steel and aluminum, the industry’s key materials, are now redesigned to reduce their environmental impact.

Recycling, a major lever

Steel is One of the most recycled materials in the world, with a recycling rate exceeding 90% in Europe. Reusing scrap halves CO₂ emissions compared to primary production. sector players, such as ArcelorMittal, invest in electric furnaces powered by renewable energies to decarbonize production.

• Eco-design and lightening of structures

Engineering innovations make it possible to design lighter structures, reducing the amount of metal needed. For example, the use of optimized profiles or wire mesh limits waste while maintaining the resistance of the structures.

• renewable energies in production

Steelworkers turn to green hydrogen to replace coal in blast furnaces. In Sweden, the project low-down aims to produce steel without fossil fuels by 2035, reducing emissions from 95%.

• sustainability and circularity

A necessary turn. Steel buildings are designed to be removable and reusable, extending their life cycle.

Faced with strict regulations (such as the European green ‘taxonomy’) and the growing demand for sustainable buildings, the metal industry is accelerating its transition. Combining technical performance and respect for the environment becomes an imperative, proving that metal can be a material for the future.