Crawl Spaces

Many homes built on crawl space foundations suffer from poor moisture management. Symptoms are most often noticed in humid spring and summer seasons but can occur at any time of the year. Below is information on how to close your crawl space and the benefits that come from making this change.

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Frequently Asked Questions

  1. What is a closed crawl space?
  2. How do I start the process of closing my crawl space?
  3. What kind of replacement crawl space vents are the best?
  4. How do I fix a musty odor?
  5. Is radon a concern in homes with crawl spaces?
  6. Will closing my crawl space vents keep my floors warmer?
  7. What can I do to address condensation on ducts and exposed electric wires in my crawl space?

Additional Resources

Closed Crawl Spaces: A Quick Reference for the Southeast
The quick reference guide summarizes the design elements and installation steps that are discussed in the full guide below. The quick reference also includes two example designs from the guide.

Closed Crawl Spaces: An Introduction Guide for the Southeast
The full closed crawl space guide provides design and implementation recommendations, sample designs, a construction sequence, an overview of North Carolina residential code requirements, recommendations for improving existing wall-vented crawl spaces, and and answers to frequently asked questions about mold in crawlspace.


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