Dirt Floor Crawl Space Encapsulation in Westfield, MA
Challenge
This homeowner called us with concerns regarding the bathroom above her crawlspace being very cold. She was also concerned with high humidity levels in the basement.
Millions of homes were built with vented dirt crawl spaces. Now all building scientists agree - that was a big mistake. Now building codes are changing. In the winter, vents let cold air directly into our home. Floor insulation sags away from the subfloor and the cold air gets above it - rendering the insulation useless. In the summer the vents let warm humid air in which is cooled by the subterranean crawl space. This caused the relative humidity to go way up and condensation to form all over the crawl space surfaces including floor joists and ducts. Mold grows and wood rots, while insect and other pests flourish. Musty odors can be noticed upstairs as mold spores travel upwards into the living space. Eventually rotted floor joist must be replaced and mold must be remediated. An unending stream of water vapor comes up from the ground adding to the moisture load in the crawl space and house. The damp air is harder to heat and cool. Result - condensation, mold, rot, pests and odors, cold floors, drafts, uncomfortable home, higher fuel and electric bills.
Solution
Vents and other air leaks to the outside are sealed, often using our insulated vent covers. Crawl space walls are insulated with SilverGlo™ insulation with a reflective radiant barrier face. Then a dimpled plastic drain-age matting is installed on the floor to create an airspace and thermal break between the CleanSpace and earth. Finally the heavy duty, 20 mil thick CleanSpace™ crawl space encapsulation liner is installed permanently across the dirt floor - sealed with mechanical fasteners to the walls and spiked to the floor. CleanSpace™ features Ultrafresh™ anti-microbial ingredients in the product. Results - much lower humidity, much warmer floors upstairs, less drafts, more comfortable house, lower fuel and electric bills.
