Troubleshooting Sub-Floor Thermal Drafts: Installing Polyethylene Foam Sill Seals

When the winter temperature drops and heating bills begin to spike, homeowners frequently ask themselves: why are my floors so cold over crawl space environments? They perform standard energy audits, sealing attic hatches and window thresholds upstairs, yet they are still plagued by a persistent, freezing breeze moving across their living room rugs. In almost … Read more

Ideal Crawl Space Dehumidifier Settings for Relative Humidity Control

Ideal Crawl Space Dehumidifier Settings for Relative Humidity Control Setting up a heavy-duty crawl space dehumidifier is one of the best investments you can make for your home’s structural integrity. However, many homeowners make the mistake of setting the machine and forgetting it without understanding how relative humidity (RH) actually impacts below-grade timbers. If you … Read more

Rigid Foam Board vs. Fiberglass Batts in Crawl Spaces

Insulating a crawl space correctly requires understanding how thermal boundaries interact with heavy subterranean humidity. For decades, residential building codes dictated stuffing fiberglass batt insulation up between structural floor joists. Today, modern building science proves that fiberglass in an unconditioned crawl space is one of the leading contributors to wood rot, saggy subfloors, and toxic … Read more