Building Retrofit

Deep Energy Renovation of Existing Buildings (Solution Type)

Global (widely applicable)

Highlight

Upgrading insulation, windows and building systems cuts energy demand and emissions while improving comfort.

Extended description

Deep energy retrofit upgrades existing buildings through insulation, better windows, airtightness, efficient heating and cooling and, where appropriate, renewable energy. Because most buildings that will be occupied in coming decades already exist, renovation is central to urban decarbonisation. Well-designed retrofits can sharply cut energy demand and emissions while improving thermal comfort, resilience to heat and energy affordability.