In each country, the best three projects will be selected by a jury. Winning national projects will feature in the “Best Of Book” which aims to promote outstanding European projects in energy efficiency design for a better sharing of knowledge and practices between all building partners.

This competition is a natural outgrowth of two environmental issues that are part of Isover’s preoccupations—protection of the external environment in the face of climate change and enhancing the quality and physical comfort of the interior environment.