37º IAHS World Congress on Housing: - Universidad de Cantabria

XXXVII <strong>IAHS</strong><strong>World</strong> <strong>Congress</strong> on HousingOctober 26 – 29, 2010, Santander, SpainCODE: 1030NATIONAL MONUMENTS WITH TRADITIONAL TIMBERROOFS: RESTORATION VERSUS RECONSTRUCTION.COLLEGIATE CHURCH OF ROA DE DUERO AND SANESTEBAN OF LOS BALBASES.Javier Garabito a b , José Carlos Garabito c , Víctor Echarri da Department of Building Construction, University of Burgos, Spainb Architect Director of the Holy Cathedral Basilica Church of Burgos. SPAINc G.L. Arquitectos S.L.P., Spaind Department of Building Construction, University of Alicante, Spainjgarabito@ubu.esKey words: Restoration, roof, timber structure, heritage, laminated woodAbstractWe prioritize interventions in the roof structure in order to prevent subsequent deterioration ofthe monument. This presentation refers to interventions in two buildings, both of themclassified as national monument: the Collegiate Church of Roa de Duero and San Esteban'schurch of Los Balbases.The Collegiate Church is located at the Major Square of Roa, and it was built during the 16thcentury. It is considered the jewel of the villa. It is a “hallenkirche” (hall church) model withthree big naves of the same height covered by beautiful starry vaults. It belongs to “Gil deOntañón's School”. The intervention consisted of restoring the wooden roof structure,preserving the original 16th century structure, by replacing the damaged elements andreconstructing the apse’s roof, which was erroneously rebuilt after the fire of the 19th century.It was restored according to archaeological criteria.San Esteban´s church is a 13 century Gothic style church with a Latin cross plan. It has threenaves with a transept of great slenderness; it’s notable for the height of its Gothic vaults andthe large dimensions of its naves and transept. It preserves Romanesque remains. Opposite tothe previous intervention we decided to rebuild a new roof made of laminated wood becausethe former roof was totally distorted due to bad executed works during the past Century. Inthis way we regain the original shape of the church as well as we recover the crenellatedtower image.These interventions aim to improve constructive and structural conditions as well as retrievethe image of both monuments. We have studied the visual impact of interventions throughvirtual recreations.The intervention criteria are very different, restoration versus structural reconstruction.37º <strong>IAHS</strong> <strong>World</strong> <strong>Congress</strong> On Housing Science 356