This is a summary of a study of the subfloor moisture levels of south Louisiana raised foundation homes with six different insulation systems. It also includes the resulting recommendations – all intended to help homeowners, builders, architects, insulation contractors, home inspectors and others balance energy efficiency, comfort and durability issues. Among the issues addressed are:

• Why does moisture management matter?
• How much moisture is too much?
• How does insulation affect moisture levels?
• Types of crawl spaces
• Managing rainwater and soil moisture
• Water vapor movement
• Effects of season, air conditioning, indoor temperature, floor finish and type of insulation
• Questions and answers

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