This study focuses on the monitoring of rising damp, a widespread phenomenon that causes moisture-related damages in existing construction. Diagnosing moisture-related damages in construction can be difficult due to the many potential causes of moisture accumulation. The study aims to contribute to the understanding and diagnosis of moisture sources by evaluating and comparing different monitoring techniques for the diagnosis of rising damp in different types of masonry (brick, stone, and reinforced concrete). Five methods were evaluated and compared: gravimetric test, wall weighing, temperature and humidity sensors placed inside the wall, microwave instrumentation, and thermographic images. The results of the study showed that the gravimetric test is the only method that provides reliable and quantitative data, but it has limitations such as the need to ensure that the extracted powders consist of a single material and the potential for heat to cause moisture to evaporate quickly. The weighing method is time-consuming and limited to lab settings, and the use of sensors placed inside the wall is semi-invasive but has important limitations such as sensor reliability and different results in masonry with heterogeneous composition. The data obtained with microwave instruments cannot be easily correlated with the amount of moisture, and the method proposed for the analysis of thermographic images allows for the assessment of the evaporation area over time but has greater uncertainty in some replicas. As a result if the study, a combined approach with complementary methods is suggested to reach more accurate results.

本研究的重点是监测潮气上升，这是一种普遍现象，会在现有建筑中造成与湿气相关的损坏。由于湿气积累的许多潜在原因，诊断建筑中与湿气相关的损坏可能很困难。该研究旨在通过评估和比较用于诊断不同类型砌体（砖、石和钢筋混凝土）中上升潮气的不同监测技术，有助于了解和诊断潮气源。评估和比较了五种方法：重力测试、墙体称重、放置在墙内的温度和湿度传感器、微波仪器和热成像图像。研究结果表明，重量测试是提供可靠和定量数据的唯一方法，但它有局限性，例如需要确保提取的粉末由单一材料组成，以及热量可能导致水分快速蒸发。称重方法耗时且仅限于实验室设置，使用放置在墙内的传感器是半侵入式的，但具有重要的局限性，例如传感器的可靠性和在具有异质成分的砌体中的不同结果。用微波仪器获得的数据不能轻易地与水分含量相关联，并且为热成像图像分析提出的方法允许随着时间的推移评估蒸发面积，但在某些复制品中具有更大的不确定性。因此，如果这项研究建议采用结合方法和互补方法来获得更准确的结果。