The European Far-Infrared (FIR) Space Roadmap focuses on fundamental, yet still unresolved, astrophysical questions that can only be answered through a far-infrared space mission and gives an overview of the technology required to answer them. The document discusses topics ranging from Solar System and Planet Formation, Our Galaxy and nearby Galaxies and Distant Galaxies and Galaxy Evolution. The FIR Roadmap was open to comments from the wider astronomical community following a presentation during EWASS 2016.