REHAB 2019 - 4th International Conference on Preservation, Maintenance and Rehabilitation of Historic Buildings and Structures aims to proceed with the discussion on built heritage and the preservation of its legacy, that was established in the previous editions of the event. The importance of conservation of historical constructions (built landscape, urban fabrics, buildings, and engineering works) are of utmost importance to preserve the cultural references of a community and was deeply discussed on March 2014, in Tomar, July 2015, in Porto and July 2017, in Braga.

Under the main topics of discussion, subjects of preservation and rehabilitation methodologies and technologies, as well the importance of the economic and social impacts of preservation practices are here covered as the main leading guidelines for the conference debate.

Furthermore, different communities’ scales (local, regional national or even worldwide) and authenticity interpretation raise different questions and approaches, and therefore different solutions that are worthily to study, to compare and to experience.

The sustainability approach is again covered, highlighting the importance of the commitment between heritage preservation and technical requirements related to its occupancy and use, such as energy efficiency or materials recovery.

Inclusivity is also an important aspect to be discussed as public historical sites and buildings need to be adapted to receive different kind of visitors (children, elderly or handicapped persons) and to establish an adequacy with the perceiving of the physical environment and information contents.

As a Special Chapter, "Risk analysis, disaster prevention and post-disaster mitigation in historic centres" is brought into evidence by the complexity of applying risk analysis and post-disaster measures in these cases. Risks of natural phenomena such as earthquacks and floods, as well phenomena caused by man such as fire, combined with the density of the urban fabric, the high combustion potential, and in many cases, over population, needs a more exploratory approach concerning the prevention and mitigation of these occurrences.

Authors intending to submit papers to REHAB 2019 are encouraged to address one of the topics of the Conference by providing evidence on past experience and ongoing research work.

Further, REHAB 2019 will welcome papers and presentations on field work, case studies and theoretical approaches to historical buildings preservation and conservation.