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Infrastructures 2018, 3(3), 37; https://doi.org/10.3390/infrastructures3030037

Combination of Diagnostic Tools for the Proper Identification of Moisture Pathologies in Modern Residential Buildings

ENEDI Research Group, Department of Thermal Engineering, Faculty of Engineering of Bilbao, University of the Basque Country UPV/EHU, Alda Urquijo S/N, 48013 Bilbao, Spain
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Received: 30 July 2018 / Revised: 11 September 2018 / Accepted: 12 September 2018 / Published: 14 September 2018
(This article belongs to the Special Issue Selected Papers from the REHABEND 2018 Congress)
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Abstract

A study of moisture pathologies in a modern residential multifamily building is presented. The housing block was designed under the regulation NBE-CT of 1979 in northern Spain. After the appearance of some moisture problems in the façades, three complementary studies were conducted to analyze the situation of the envelope and diagnose the best improvement possibilities. First, indoor conditions of temperature and humidity of the apartments with moisture pathologies were monitored. During 40 winter days, the occupancy, heating operation, and natural ventilation were analyzed. Second, the inner and outer surface temperatures of the studied façades were measured. Thermal insulation degree, thermal capacity, and thermal bridge effects were measured to assess the risk of interstitial condensation under the real conditions of use. Third, an infrared thermographic survey was carried out, which allowed the detection of irregularities and the assessment of moisture problems. The wrong interpretations, which would have been made if the complementary studies had not been done, are exposed. The key towards the accurate diagnosis was the combination of tools. Finally, some technical solutions based on ventilation or thermal insulation enhancement are proposed as different ways to reduce the high levels of relative humidity indoors and minimize the risk of condensation in the future. View Full-Text
Keywords: construction pathologies; indoor air quality; building monitoring; infrared thermography; interstitial condensations construction pathologies; indoor air quality; building monitoring; infrared thermography; interstitial condensations
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Hidalgo-Betanzos, J.M.; Escudero-Revilla, C.; Iribar-Solaberrieta, E.; Flores-Abascal, I.; Sala-Lizarraga, J.M.P. Combination of Diagnostic Tools for the Proper Identification of Moisture Pathologies in Modern Residential Buildings. Infrastructures 2018, 3, 37.

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