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	Wood-decay fungi on wooden elements of various roofs constructions Frankl, Jiří From a large group of wood-damaging fungi, only a few species participate on degradation of wood built in various building constructions. In spite of that, these species often cause significant damage by their activity. Detailed record
	Mechanical characteristic of timber damaged by chemical anti-fire agents Kloiber, Michal ; Frankl, Jiří ; Drdácký, Miloš ; Tippner, J. ; Kučerová, I. ; Bryscejn, Jan The article presents the results of a research focused on determination of effect of chemical degradation of wooden construction elements on their mechanical characteristics. The damage of wood was caused by chemical reactions of basic substances of wood mass with compounds contained in anti-fire coatings. This kind of corrosion is called surface defibering of wood. Detailed record
	Impact of chemical corrosion on mechanical characteristics of wood Frankl, Jiří ; Kloiber, Michal ; Drdácký, Miloš ; Kučerová, I. The contribution is dedicated to the problem of chemical corrosion of surface layers of wood in buildings, caused by reaction of chemical substances contained in formerly used chemical anti-fire agents, applied by spraying or coating on wooden construction elements. Findings discovered during survey of buildings and laboratory methods (mechanical tests) of testing of impact of damage on mechanical characteristics of wood and wooden construction elements are presented in the poster. Detailed record
	Dendrochronological dating and diagnostics of historical wooden structures Rybníček, M. ; Kloiber, Michal ; Kotlínová, M. ; Wondráček, L. We may classify preserved historical wooden structures as important documents of how advanced the material culture of our ancestors was. An important task for our society is to spread knowledge which helps preserve the maximum number of authentic wooden structures. The objective of the contribution is to get informed about methodological procedures which are used in the construction/historical and construction/technical research of historical wooden building structures. Detailed record
	Utilisation of non-destructive and gentle instrumental methods during research of wooden construction of historical buildings Frankl, Jiří ; Kotlínová, M. ; Kloiber, Michal The basis of research of wooden constructions of historical buildings is the evaluation of their condition with use of sensorial methods. In cases when some parts of constructions are fully or partially inaccessible and in cases when we want to get deeper knowledge about their qualitative and mechanical condition, it is necessary to use other instrumental methods. Detailed record
	Selected non destructive methods for investigation of a hidden wood decay extent Drdácký, Miloš ; Kloiber, Michal ; Kotlínová, M. ; Valach, Jaroslav ; Frankl, Jiří ; Bryscejn, Jan The paper deals with a practical application of selected nondestructive testing methods at survey of decayed roof framework members. Three methods were used: X-ray, ultrasound testing and resistance microdrilling. Detailed record

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