When it comes to CO2, the use phase of a building has a very important role to play. Buildings are responsible for 36% of CO2 emissions in the EU and 40% of energy consumption. When looking at the whole life cycle of a building (including material production and construction), the use phase (heating, cooling, lighting etc.) often accounts for up to 80% of the CO2 emitted. This is where concrete can make a very positive contribution, as its durability, thermal mass and air tightness qualities help to reduce energy consumption and CO2 emissions.
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