f30508040

Proportion of Materials
Used in Building Elements

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

30204020

Steel Use in Buildings

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

6474548

Sources of Global
C02 Emissions by Sector

C02 gigatonnes by Sector
Buildings8.8
Industry9.9
Transport7.3
Other1.1
27.1 gigatonnes