Infrared thermography for assessing moisture related phenomena in building components

Barreira, Eva; Almeida, Ricardo M. S. F.; Delgado, J. M. P. Q.

doi:10.1016/j.conbuildmat.2016.02.026

Cited by 115 publications

(61 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The studies have shown a strong dependence on the variations of surface temperature and sun incidence, with no agreement about the criteria regarding the best time to make the thermographic inspection (day or night) [15,16]. It can be said, obviously, that the weather conditions in the country where the studies are being performed are an important variable in the processes and results since they involve differentiations of heat flux for each study [4,14].…”

Section: Introductionmentioning

confidence: 99%

Facades inspection with infrared thermography: cracks evaluation

et al. 2016

View full text Add to dashboard Cite

Infrared thermography is an evaluation technique that helps to identify anomalies and can provide information on their incidence and severity. The aim of this study is to apply quantitative thermography to study a case of severe cracks in facade analyzing the evolution of temperatures and Delta-T. The temperature evolution was studied over a day. There was sun incidence occurring during part of the day, allowing to calculate and assess the evolution of the associated temperatures. Thermograms were acquired hourly during the study period. The highest temperatures were observed at 12:00 noon, and the larger Delta-T between 10:00 and 12:00. There were differences between the Delta-T profiles among the three regions studied. The best time for analysis is when Delta-T is higher. Cracks with higher Delta-T were considered more degraded, and generalized branched cracks did not allow a comparative conclusion.

show abstract

Section: Introductionmentioning

confidence: 99%

Facades inspection with infrared thermography: cracks evaluation

et al. 2016

View full text Add to dashboard Cite

show abstract

“…Next to these methods, non-destructive moisture analyses are also frequently used: IR thermography, resistive methods, dielectric methods, microwave instruments [4,14,20,21]. Despite their sustainability, the non-destructive techniques present some disadvantages such as: the semi-quantitative qualitative nature of the results; the relative representativeness of the obtained data (often related only to the surface); the need of calibration with data coming from destructive sampling; and the necessity of an adequate data processing [22][23][24].…”

Section: Introductionmentioning

confidence: 99%

“…Soaked masonries often show serious conservation issues. The phenomenon and the resulting decay have been extensively studied [1][2][3][4], as well as possible remediation methods [5,6], both from the theoretical point of view [7][8][9][10][11], and on several real case studies all over the world [2,[12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Rising damp in historical buildings: A Venetian perspective

Falchi

Slanzi

Balliana

et al. 2018

Building and Environment

View full text Add to dashboard Cite

A B S T R A C TConsidering several real case studies, moisture distribution due to rising damp in Venetian brick masonries is discussed and empirical models are developed. Moisture content and soluble salt data of 25 historical buildings in Venice are analysed. Data are scrutinized using statistical methods, obtaining contour plots and estimating the validity of linear and non-linear models. The models confirm that masonries are usually soaked with water till 120-150 cm over sea level, while the evaporation zone ranges in height from 200 cm to 350 cm. In the perpendicular section, moisture distribution depends on several contingent factors such as, among them, the proximity and the exposition of the external façades to the water action.

show abstract

“…A new approach to moisture detection in buildings by an optical infrared thermography method is presented in several papers [4][5][6][7]. Infrared thermography was used to map moisture distribution and to identify areas with anomalous water content in modern and ancient building structures.…”

Section: Introductionmentioning

confidence: 99%

Influence of moisture on thermal properties of walls in basements of buildings

Kic¹

2017

Engineering for Rural Development

View full text Add to dashboard Cite

Abstract. This paper is focused on the problems of increased moisture in the structure of buildings, especially in basements of buildings, which have usually very poor insulation against ground moisture. Wet walls are rather a common problem of old buildings, but it can appear also in new buildings as well. Moisture in the wall influences the insulation quality; bigger heat losses continuously cause problems of worse heat balance, higher consumption of energy for heating and it can result in not sufficient indoor conditions in such a room or building. The aim of this paper is to present the results of evaluation of the main thermal-heat properties in basement rooms with partly wet and partly dry peripheral wall. The surface temperature and surface moisture were determined by measurement in wet and dry parts of the wall in the same room. The moisture of the wet part was approximately four times higher than of the dry part of the wall. The heat flux density passing from the heated room through the wall was also measured using a special sensor. The measurement results showed a significant effect of high wall moisture on the heat losses, as the heat flux density was one and a half times higher. The obtained results from this measurement and findings may be useful for further research in this issue as well as for practical solutions for similar problems in many older buildings.

show abstract

Infrared thermography for assessing moisture related phenomena in building components

Cited by 115 publications

References 24 publications

Facades inspection with infrared thermography: cracks evaluation

Facades inspection with infrared thermography: cracks evaluation

Rising damp in historical buildings: A Venetian perspective

Influence of moisture on thermal properties of walls in basements of buildings

Contact Info

Product

Resources

About