However, the specific environmental impact of each type of iron comes down to differences in processing. Cast iron, made from melting down scrap iron and other alloys, does make use of recycled materials. However, the energy-intensive process of melting and casting iron can have a significant carbon footprint. Cast iron is also more likely to need replacement if damaged, potentially resulting in more frequent material use over time.

Advantages of Using Aluminium Window Extrusion Profiles in Construction