[Evento segnalato da IGIIC]
Lisbona, 15 – 16 Aprile 2009: Congresso internazionale sulle ceramicheExhibition
Conservation of glazed ceramic tiles - research and practice
Space for promotional exhibits is available in the conference hall, or in the nearby exterior area. For cost and other conditions, please
contact Teresa Fonseca: firstname.lastname@example.org phone: (+351) 218 443 729 fax: (+351) 218 443 018
A table will be available for participants to make available promotional leaflets of other events, services or products or to call for
research partnerships within the scope of Conservation.Venue
Congress Centre Laboratório Nacional de Engenharia Civil Av. Brasil 101 – LISBON
Underground: Alvalade Seminar web site http://azulejos.lnec.ptOther information
email@example.com - firstname.lastname@example.org phone: (+351) 218 443 320 / (+351) 218 443 642 fax: (+351) 218 443 021Deadlines
Extended abstracts: March 15, 2009 Communications: April 05, 2009Introduction
Glazed ceramic tiles decorated with intricate geometric patterns and Arabic writing was for centuries, and still is, in widespread use in the Islamic countries and for westerners remain one of the most recognizable and constant marks of the beauty of mosques. From its origin in the Middle East and flourishing in the Islamic world, glazed tiles spread to Spain and Portugal and subsequently to Italy, the Low Countries and most of Europe.
Glazed ceramic tiles are used as decorative panels or as finishes of whole walls and façades in many countries, such as Portugal, where they make up a very relevant part of the national cultural heritage. Introduced to the country from the Moorish and Andalusia factories of Granada, Seville and Manises, they started being produced locally in the 16th century and developed as a preferred means of finishing architectural surfaces a century later, when they became ubiquitous in palaces, churches, gardens and bourgeois houses. The prevailing cobalt blue painting over a white tin glaze, that is so readily associated with the baroque architecture of Portugal and Brazil, developed when these colours became fashionable under the influence of Ming porcelain brought to the country by the Portuguese ships that made the China trade route. Production in Holland, where the same influences gave origin to glazed tiles finished in the famed Delft blue, was particularly remarkable and when demand in Portugal grew so much that it could not be met locally, tiles were actually imported from Holland. After a century of decline, the Art Nouveau movement brought about a renaissance of glazed tiles. Now over a century old, Art Nouveau tiles are themselves a worthy and readily recognizable heritage asset of both Europe and the Americas.Concept and themes
Azulejos (as glazed ceramic tiles are called in Portuguese) are a durable architectural finishing, as proven by centuries-old panels that are still virtually undamaged. However they also suffer from the inherent weakness of being a layered material in which the outer glazed layer can readily detach from the ceramic substratum when water is able to penetrate within. Other frequent decay causes are the cracking of the glazed surface and the loss of adherence of individual tiles to the supporting walls. These and other weaknesses are often exacerbated by interventions making use of materials that are not fully adequate. Cases are found nowadays where well over a third of the glazed surface has been lost in a decay process that is in progression and will inevitably lead to the loss of whole panels of heritage value. The aim of this seminar is discussing glazed ceramic tiles of historic interest, their decay and their conservation, as well as the pathologies of their insertion as architectural finishes. Examples of decay and their causes will be reviewed. Research results will be presented and research needs in the field put forward. Conservation and restoration methods and materials will be discussed based on the experience of practicing conservators and on results of past interventions.
The event will include lectures by specialists from several countries with relevant activity in the field, as well as communications by researchers and practitioners. For details, please see the program at the seminar site.