*Article* **Monitoring of Thermal and Moisture Processes in Various Types of External Historical Walls**

#### **Dariusz Bajno 1, Lukasz Bednarz 2,\*, Zygmunt Matkowski 2 and Krzysztof Raszczuk 2**


Received: 7 December 2019; Accepted: 15 January 2020; Published: 21 January 2020

**Abstract:** In order to create and make available the following: Design guidelines, recommendations for energy audits, data for analysis and simulation of the condition of masonry walls susceptible to biological corrosion, deterioration of comfort parameters in rooms, or deterioration of thermal resistance, the article analyzes various types of masonry wall structures occurring in and commonly used in historical buildings over the last 200 years. The summary is a list of results of particular types of masonry walls and their mutual comparison. On this basis, a procedure path has been proposed which is useful for monitoring heat loss, monitoring the moisture content of building partitions, and improving the hygrothermal comfort of rooms. The durability of such constructions has also been estimated and the impact on the condition of the buildings that have been preserved and are still in use today was assessed.

**Keywords:** monitoring; historical masonry wall; hygrothermal processes; internal insulation
