Perminator HP underslab vapor barrier is a new generation of polyolefin-based resin/chemical technology. It 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. New resin technology allows dramatically greater puncture resistance while maintaining one of the lowest perm ratings in the market. Perminator HP is tough enough to withstand normal construction jobsite conditions and traffic. It will not crack, puncture, snag, split, or tear easily. Perminator HP prevents uncontrolled moisture from entering the slab allowing the slab to maintain the maximum slab moisture emission rate and relative humidity level as allowed. Perminator HP rolls require fewer seams in application. Installation is quick and easy. All joints/seams, both side and end, should be overlapped 6" (152.4 mm) and taped using 4" (101.6 mm) wide Perminator TAPE. Perminator HP rolls fast and smoothly over level tamped soil or compacted fill.