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DuPont Energain


Heating and lighting of buildings accounts for the largest single share of energy use (42%, of which 70% is for heating) and produces 35% of all greenhouse gas emissions. Improving the energy efficiency of existing buildings is the most cost-effective way of meeting Kyoto climate change commitments. The environmental problem which this project addresses is to contribute towards improvement of overall sustainability of buildings and the built environment by improving energy efficiency in buildings.

Targeted EU legislation is primarily: Directive 2002/91/EC of the European Parliament and of the Council of 16 December 2002 on the energy performance of buildings, Council Directive 89/106/EEC of 21 December 1988 on the approximation of laws, regulations and administrative provisions of the Member States relating to construction products and Council Directive 96/62/EC of 27 September 1996 on ambient air quality assessment and management.

The overall objective of the project is the development and demonstration of innovative technologies for the improvement of the energy efficiency of existing as well as new buildings. Therefore DuPont envisage the demonstration of two new technologies, i.e.

  • a phase change material (PCM - DuPont™ Energain®) that absorbs and releases heat so that a more uniform temperature is obtained in buildings resulting in less necessity for cooling and for heating
  • a reflective technology that combines low emissivity properties which improves the thermal insulation of the building with breathable properties in order to prevent interstitial condensation in the building (DuPont™ Climate Systems)