Chapter 32 Further Reading: Basements and Crawlspaces
Radon
1. EPA: "A Citizen's Guide to Radon" — epa.gov/radon The EPA's primary public resource on radon — testing, interpretation of results, mitigation options, and contractor selection. The EPA publishes a state radon contact directory and Zone maps showing predicted radon potential by county. Free PDF and online. Essential reading before testing.
2. EPA: "Consumer's Guide to Radon Reduction" Companion to the Citizen's Guide, focused specifically on mitigation systems — how they work, what installation involves, how to find a qualified contractor, and what to expect post-installation. Free PDF from epa.gov. More technical detail on sub-slab depressurization than the general guide.
3. National Radon Program Services — sosradon.org The NRPS is the EPA's program partner for radon testing resources. They sell discounted test kits and maintain a list of state-certified radon testing laboratories. Their website also lists state radon offices and links to professional mitigator certification programs (NRPP and NRSB certifications are the recognized credentials for radon professionals).
Building Science: Moisture and Crawlspaces
4. Building Science Corporation — "Crawlspace Venting" Research — buildingscience.com BSC has published extensive research on crawlspace performance, including their foundational reports on why ventilated crawlspaces fail in humid climates and the performance of sealed, conditioned crawlspaces. Most research is free. The report "BSD-104: What You Need to Know About Crawl Spaces" is a comprehensive starting point.
5. Advanced Energy Corporation Crawlspace Research AEC conducted some of the original research in the 1990s and 2000s that led to the re-evaluation of ventilated crawlspace standards. Their research formed much of the basis for the 2012 IRC crawlspace code changes allowing unventilated crawlspaces. Summary reports are available through BSC and the Building Science and Technology library.
6. "Understanding Basements" — Joseph Lstiburek, Building Science Press Lstiburek (founder of Building Science Corporation) is among the most respected names in applied building science. This guide covers basement moisture physics, insulation strategies, finishing considerations, and the specific failure modes of various basement construction approaches. Available for purchase at buildingscience.com. Authoritative and readable.
Mold
7. EPA: "A Brief Guide to Mold, Moisture, and Your Home" — epa.gov Practical homeowner guidance on mold identification, health considerations, remediation scope, and when to call a professional. Clearly written, free. Covers the 10-square-foot threshold for homeowner remediation and the basics of containment and cleanup.
8. IICRC S520 Standard for Professional Mold Remediation The industry standard for professional mold remediation, published by the Institute of Inspection, Cleaning and Restoration Certification. Understanding this standard helps homeowners evaluate remediation contractor proposals and identify whether a contractor is following recognized practice. Available for purchase; the executive summary is sufficient for most homeowners.
Basement Finishing
9. Building Science Corporation — "Basement Insulation Systems" Free articles and reports on the full range of basement insulation strategies, from uninsulated to continuous rigid foam to sprayed foam, with performance comparisons and recommendations by climate zone. Essential for anyone making basement insulation decisions before finishing.
10. International Residential Code (IRC) — Chapter 11 (Energy Efficiency) and Chapter 34 (Existing Buildings) Relevant code sections for basement finishing: egress requirements (Section R310), habitable room standards, insulation requirements by climate zone. Available through local building departments or online code access services. Know which edition your jurisdiction has adopted.
Flooring
11. National Wood Flooring Association (NWFA) — Installation Guidelines The NWFA publishes guidelines on moisture testing requirements and installation standards for all types of wood and wood-composite flooring, including specific guidance for below-grade applications. Relevant for anyone considering engineered hardwood in a basement. Free download at nwfa.org.
12. Floor Covering News and FloorBiz Industry Resources Industry publications for floor covering professionals but accessible to homeowners — contain detailed product comparisons, performance data, and installation guidance for LVP, ceramic, and other flooring types. Useful for evaluating specific product specifications and understanding what wear layer thickness, core material, and AC rating mean for a basement application.