30204020

Steel Use in Buildings

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

2519442=

Top 5 Sources of
Global C02 by Industry

Industries by percentage
Cement24.9
Steel1.85
Plastic0.35
Paper0.42
Aluminium0.24
9.85 gigatonnes

f30508040

Proportion of Materials
Used in Building Elements

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