Moisture Monitoring Techniques for the Protection of Timber Structures

Moisture protection of timber structures is of high importance for a sustainable built environment. This paper provides an insight into moisture protection concepts and international regulations for moisture monitoring with permanently installed sensors. Comparative experiments for the method of long-term electrical resistance measurements and the sorptive method are conducted in both, in-vitro and in-situ measurement campaigns in CLT. Based on oven-dried samples, electrical resistivity conversion seems to tend to give too low values for wood moisture content, while results after conversion from sorption isotherms tend to be too high, depending on the equation used. Thus, the investigations show significant discrepancies and the need for further laboratory measurements. Finally, the paper outlines the further potential of moisture monitoring concepts based on European standardization work.     «

Moisture protection of timber structures is of high importance for a sustainable built environment. This paper provides an insight into moisture protection concepts and international regulations for moisture monitoring with permanently installed sensors. Comparative experiments for the method of long-term electrical resistance measurements and the sorptive method are conducted in both, in-vitro and in-situ measurement campaigns in CLT. Based on oven-dried samples, electrical resistivity conversi...     »