Challenges and strategies of preventive conservation in places of worship – Church of Nossa Senhora de Guadalupe case study

Author(s):Alexandra Marco, Manuela Pintado, Patrícia R. Moreira, Eduarda Vieira
Paper category: Proceedings
Book title: Proceedings of the 5th Historic Mortars Conference
Editor(s): José Ignacio Álvarez, José María Fernández, Íñigo Navarro, Adrián Durán, Rafael Sirera
ISBN: 978-2-35158-221-3
e-ISBN: 978-2-35158-222-0
Publisher: RILEM Publications SARL
Publication year: 2019
Pages: 1068-1084
Total Pages: 17
Language : English

Abstract: Romanesque granitic churches with 15th–16th century fresco mural paintings presenting black stains that tarnish both support and chromatic layer and the solutions for their removal, are the primarily focus of our on-going investigation. One of its unique case studies, Nossa Senhora de Guadalupe Church, is addressed here for the identification of its main environmental risks aiming to develop a preventive conservation plan that improves the preservation of the monument’s value, ultimately more cost-effective. One of its main problems has to do with the excavation site with a partially buried main chapel and unexcavated blocks in some facades. The sunken part of the building as water capillarity in its floor, water percolation in the south facade, and roof infiltrations (in the past and present). Apart from the high content of water, other environmental factors such as chromatic alteration, biological growth, wind erosion and particle deposition contributed to its degradation. Solutions were suggested for the more urgent and curative ones, but the long-term maintenance measures will only be possible to recommend after a thorough examination of the monument’s conditions.

Online publication : 2019
Publication type : full_text
Public price (Euros) : 0.00