Fiberglass insulation simply does not work in the crawl space environment! In this East Berlin, CT home, the high moisture levels caused the insulation to droop down from the ceiling and eventually just fall off, leaving the area uninsulated. After the area was cleaned out, we installed our SilverGlo™ Crawl Space Wall Insulation around the outer perimeter. It is an expanded polystyrene foam insulation impregnated with graphite particles, improving its insulating capabilities by 24%. It will not absorb moisture like other insulation products, keeping it a viable insulator even in the moist basement environment.