Technical Papers
The CleanSpace vapor barrier system represents a major advancement in subterranean moisture mitigation and structural preservation, functioning as a heavy-duty, 20-mil protective envelope designed to encapsulate crawl spaces and basement walls. Traditional vented crawl spaces frequently introduce unmanaged humidity, condensation, and outdoor air infiltration into residential structures, which routinely fosters structural wood rot, fungal proliferation, and declining indoor air quality. By uncoupling the building envelope directly from the earth, the CleanSpace membrane blocks ground moisture diffusion and creates a stable physical barrier between the damp soil and the living space above.
The high-performance integrity of the material stems from a sophisticated seven-layer co-extrusion manufacturing process. This composite structure strategically blends high-density polyethylene (HDPE) for exceptional puncture resistance against rough sub-floors, low-density polyethylene (LDPE) to ensure high tensile flexibility, and an internal polyester cord reinforcement matrix that delivers brute tear strength. Because of this robust composition, the liner is heavily durable against physical stress from service technicians or homeowners utilizing the area for storage, and it is backed by a 25-year manufacturer warranty against rips and tears.
In addition to its physical strength, the CleanSpace membrane incorporates an integrated antimicrobial additive known as UltraFresh directly into its polymer structure. This active treatment inhibits biological activity, bacterial accumulation, and surface mildew colonization, ensuring the barrier remains sanitary over decades of use. The bright-white aesthetic finish of the visible side serves a dual purpose: it maximizes available lumen distribution under low-lighting sub-grade conditions and provides homeowners and building inspectors with immediate visual confirmation that the space is free of pest intrusion, dirt accumulation, or structural decay.
Effective deployment of the CleanSpace system requires comprehensive sealing protocols across the entire sub-grade perimeter. Trained installation professionals secure the upper edges of the liner to foundation walls using specialized mechanical fasteners and seal structural penetrations, floor seams, and foundation vents to stop outdoor air infiltration. When integrated supplementary elements—such as drainage matting, perimeter drainage channels, sump pumps, and high-capacity dehumidifiers like the SaniDry system—are incorporated, relative humidity levels within the crawl space routinely drop from damp conditions down to stable, dry thresholds.
Ultimately, the encapsulation of a structure with the CleanSpace vapor barrier delivers profound thermal and economic benefits. By isolating the home from subterranean moisture and eliminating drafty sub-floors, the system reduces heating and cooling energy expenditures, acts as a passive radon mitigation deterrent, and enhances overall property valuation. Transforming a hazardous, damp environment into a clean, dry, and conditioned space safeguards the long-term structural health of the residence while securing a healthier indoor environment for its occupants.