Perminator underslab vapor barrier is a new generation of polyolefin-based resin/chemical technology. Perminator provides the vapor barrier industry with a highly effective, economical choice for helping to reduce the penetration of moisture and water vapor through the slab into the structure, thereby helping to reduce fungus, mildew, and mold growth. It also helps reduce radon gas from entering the structure. Perminator prevents uncontrolled moisture from entering the slab allowing the slab to maintain the maximum slab moisture emission rate and relative humidity level as allowed by flooring manufacturer's specifications.