Arsenal Project – the timber roof of tesone ‘111’: technological characteristics, dating and assessment of thermo-hygrometric behavior for a restored functionality proposal

Abstract This paper is part of the research activities of the CNR Cultural Assets Finalized Project linked with those of the MURST ex- 40% : ‘Venice Arsenal project’. The operating unit whose research findings are set forth below combines various disciplines: from technology of wood to structures, from dendrochronology to technical physics 〚1〛 , 〚2〛 , 〚3〛 , 〚4〛 , 〚5〛 , 〚6〛 . On the whole, the activities carried out referred to the timber roof of Shed 111 (Tesone) of the Arsenal ( Fig. 1 , Fig. 2 Download : Download high-res image (854KB) Download : Download full-size image Fig. 1 . Venice Arsenal: Shed 111: Overall view of the timber roof. Download : Download high-res image (953KB) Download : Download full-size image Fig. 2 . Venice Arsenal: Shed 111: detail of truss n° 10. ) with typological characterization of the roof, visual inspections of the wood trusses, assessment of the state of conservation of the framework, dating, xylotomic surveys, thermo-hygrometric evaluations. The result of such an activity is a good knowledge of the conditions of the wooden structure, a structure that dates back to the XVI century, and the proposal of generalized or punctual actions for its preservation, currently in danger. A series of laboratory tests and behavior simulations allowed the suggestion as well of retrofitting the roof as a ‘warm roof’.