Abstract
Research in the field of historical trusses has long been performed at the workplace of the authors. In each truss, there was recorded the general technical state and some even monitoring and analysing microclimate with the aim of specifying environmental conditions that would be suitable for preservation of a historical structure. The article shows the results of temperature and relative humidity measurement in roof space of the Roman-Catholic church in the historical centre of the village of Bela-Dulice as well as result of thermodynamic simulation of this space. The selected measurement was compared to the simulation results.
Highlights
If we want to maintain a good technical condition of the timber structures of the truss it is necessary to ensure microclimate conditions in a roof space
The air flow and temperature distributions in a roof space are affected by the temperature difference between the ambient and a roof space, the solar radiation absorbed by the roof, the thermal accumulation mass of the ceiling and the mass air flow which inters through inlet vents
The spring measurement was compared to the simulation results
Summary
If we want to maintain a good technical condition of the timber structures of the truss it is necessary to ensure microclimate conditions in a roof space. A more detailed picture provides simulations [3] This dynamic phenomenon is well described in the study Comsol simulation software [4]. They show that solar radiation increases the hourly attic air circulation during buoyancy driven ventilation. This article is evaluated the Roman-Catholic church of the Most Holy Body of Christ in the historical centre of the village of Bela-Dulice (see Fig. 1). It probably arose in the first half of the 14th century. The program calculates the thermal radiation from roofing and increases the air temperature.
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