6474548
Sources of GlobalC02 gigatonnes by Sector
■Buildings8.8
■Industry9.9
■Transport7.3
■Other1.1
27.1 gigatonnes
f30508040
Proportion of MaterialsBuilding Elements by percentage
■Superstructure / Substructure15
■Exterior Envelope25
■Building Services40
■Interior Systems20
Steel Use in Buildings
Applications by million tonnes
■Windows & Doors3
■Curtain Walls2
■Roofing & Cladding4
■Others2
11 million tonnes