![]() ![]() To estimate the residual element cross section and elastic modulus, wood diagnosis was carried out using three relevant non-destructive tests: (1) ultrasonic pulse velocity (2) drilling resistance (3) impact penetration. wood-destroying fungi or insects), which ineluctably leads to a likely decrease of the mechanical performances of the roof structure, were reported. accidental failure, serviceability defects…) and wood deteriorations due to biological agents (e.g. ![]() As regards the encountered pathologies, structural disorders (e.g. For the visual inspection, every element and joint constituting the roof structures received scrutiny through assessing the wood species, the different construction stages and, last but not least, their respective geometry. To this end, a research methodology was introduced and applied to these case studies into four main steps: (1) visual inspection (2) non-destructive wood diagnosis (3) structural safety evaluation (4) prevention and intervention measures. In that context, three timber roof structures from the Convent of Christ in Tomar, Portugal, were selected and investigated. Before coming up with any important decision of intervention in the restoration process of existing buildings, the assessment of the conservation state is required as regards heritage timber structures and especially for those that suffered a lack of maintenance in their service life. ![]()
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