This troubled crawl space was moist and drafty, causing the wooden floor joists to weaken and settle. We permanently stabilized the sinking foundation with push piers and then insulated the crawl space with our top-quality SilverGlo insulation system. These waterproof and graphite-impregnated insulation boards act as a vapor barrier and provide an unbroken sheet of R-11 insulation along the crawl space walls.