Between Conservators Theory And Modern Construction’s Codes. Renovation Of Roof Of 16th Century Salt House In Lubań, Lower Silesia, Poland

Ałykow K., Napiórkowska-Ałykow M., Between Conservators Theory And Modern Construction’s Codes. Renovation Of Roof Of 16th Century Salt House In Lubań, Lower Silesia, Poland, (In) Branco J.M., Poletti E., Sousa H.S., (Ed) SHATIS’19 - Structural Health Assessment of Timber Structures, Guimarăes 2019, pp. 119-128

ISBN 978-989-54496-2-0

 

summary

The Salt House in Lubań, Lower Silesia in Poland was erected between 1537 and 1539. It is located in a space between two rows of medieval defense walls erected before 1220. The building was used as a storage house for salt and grain until the end of the 18th century. Afterwards it served as the firemen's headquarters up to the 90’s of the 20th century.
The restoration works were begun in late 2017. The were carried out based on prepared earlier technical documentation and conservator’s office agreement. The first technical documentation was prepared following current technical codes and provided the exchange of all roof tiles into new ones and strengthening the wooden construction by straightening the roof surfaces for it. The authors of the paper were supervising engineers during the constructor’s and conservator’s works between 2017 and 2018. Just after the beginning of carpenter’s works the authors realized that the tiles could be mostly original and dated back to the 16th century, and were only partially exchanged during small repair works in the 19th century. The authors stopped the works and informed the conservator’s office, who in turn let prepare additional dendrochronological and conservator’s examination, had the building temporarily secured (until the following construction season) and finally changed and issued new conditions for conservator’s and carpenter’s works in order to keep the original shape of carpenter’s construction and tiles.
The paper describes the technical and conservatory problems which appeared during the restoration process. All of them are connected with a need to follow the modern building codes in the face of conservators’ theoretical conditions, which sometimes exclude each other, and the solutions of it.