f30508040

Proportion of Materials
Used in Building Elements

Building Elements by percentage
■Superstructure / Substructure15
■Exterior Envelope25
■Building Services40
■Interior Systems20

651025

Steel Use in Buildings

Application by percentage
■Superstructure65
■Substructure10
■Non-structural25

30204020

Steel Use in Buildings

Applications by million tonnes
■Windows & Doors3
■Curtain Walls2
■Roofing & Cladding4
■Others2
11 million tonnes