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Updated: Dec 31, 2025

In Situ Soil Moisture Sensors in Undisturbed Soils
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Weather-based indicators for analysis of moisture risks in buildings.

Claudia Morishita1, Julien Berger2, Nathan Mendes1

  • 1Pontificia Universidade Catolica do Parana, Mechanical Engineering Graduate Program, Rua Imaculada Conceição, 1155, Polytechnic School, Thermal Systems Laboratory, Curitiba, Paraná, BR 80215-901.

The Science of the Total Environment
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This study introduces weather-based indicators to map potential building moisture risks across Brazil. Findings reveal higher risks in densely populated areas, guiding future building moisture analysis.

Keywords:
Climatic analysisMoisture loadMoisture riskResidential buildings

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Area of Science:

  • Building Science
  • Environmental Science
  • Urban Planning

Background:

  • Moisture is a primary cause of building defects, leading to microbial growth, material degradation, and increased energy use.
  • Assessing moisture risk on a national scale, considering climate, is crucial for effective building management.
  • Existing methods often lack a comprehensive, spatially explicit approach to national moisture risk assessment.

Purpose of the Study:

  • To develop and present a methodology for outlining potential moisture risks in buildings using weather-based indicators.
  • To create new indicators for assessing moisture risk from climatic sources.
  • To spatially represent moisture risk across a country using Geographic Information System (GIS).

Main Methods:

  • Development of novel weather-based indicators to quantify moisture risk.
  • Integration of meteorological data with GIS for spatial analysis.
  • Application of the methodology to Brazil as a case study.

Main Results:

  • The study successfully mapped potential moisture risks across Brazil using the developed indicators.
  • High weather-based moisture risks were identified in densely populated regions.
  • The methodology proved effective for a preliminary, country-scale analysis of moisture risk.

Conclusions:

  • The presented methodology provides a valuable first step in assessing national-scale building moisture risks.
  • Weather-based indicators and GIS mapping are effective tools for identifying high-risk areas.
  • The findings underscore the need for targeted moisture risk management strategies in vulnerable, populated regions.