To conserve historic structures it is necessary to better understand the deterioration processes mainly caused by the environment, which is subject of change. Climate change, conversion of historic buildings, and energy efficiency in historic buildings are topical aspects our generation must consider in its measures for preservation. The EWCHP workshop brought together European activities and initiatives that capture the latest research and development in the field of cultural heritage preservation. It presents results from smaller national research projects but also ongoing European collaborative projects funded by the European Commission.