Crawl Space Repair - Vented Crawl Spaces and Falling Insulation

A vented crawl space allows air carrying moisture to flood into the crawl space in hot humid months. As the relative humidity increases and condensation occurs, the floor joists and fiberglass insulation soak up this moisture. The Fiberglass becomes heavier as it takes on water and the material begins to delaminate, or separate its layers. Along with the help of gravity, the insulation begins to fall leaving you with cold floors in the winter months, and drafts.