Iron cast and wrought iron are two distinctly different products both with specific purposes in construction.
Iron used for roofing.
The popular 0 42bmt is used predominantly for domestic roofing the 0 48bmt is used mostly for commercial applications and the 0 60bmt now provides a heavier and stronger profile in the range.
Red iron steel or structural steel is one of most used steel types for buildings around the world.
Cast iron is melted poured and molded.
Within the construction industry copper is most often used for cladding electrical wiring heating systems oil and gas lines rainwater systems and roofing.
This provides incredible strength and durability making it ideal for long lasting structures with wide open spaces.