Weather-based indicators for analysis of moisture risks in buildings

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.