A durable, polyethylene sheet with a thickness of 10 mils, designed to impede moisture migration within a subfloor area, is commonly available at a large home improvement retailer. These products are specifically intended for installation in subterranean unfinished spaces to mitigate dampness and associated issues.
The application of such a barrier provides several advantages. It significantly reduces the potential for mold and mildew growth, improves indoor air quality by preventing soil gases and odors from entering the living space, and can contribute to energy savings by minimizing heat loss or gain. Historically, controlling moisture in these under-house areas has been a common practice in building maintenance to preserve structural integrity and occupant health.
