As a collection of ecological evaluations and key building physics data, the Details for Passive Houses is a classic in every design library and the underlying reference work for the book entitled Details for Passive Houses: Renovation. As usual, specialist engineers, architects, and the organizers of competitions can use the new edition to find reliable construction details, information on construction materials, and criteria for evidencing and specifying ecologically optimized design. All evaluations were carried out based on the international Passive-Houses standard. Overall: a well-researched reference work which, with its bilingual narrative, helps to overcome language barriers and can therefore also be used for advising international building clients.