W. R. MEADOWS PERMINATOR 15 mil underslab vapor barrier/retarder now has a lower perm rating of 0.0063, which is 16 times better than that which is required of ASTM E1745 (0.1 perms).<br />
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Proprietary resin technology allows PERMINATOR to also exceed the recommendation of ACI 302.2R (for a vapor barrier to be installed with a perm rating of less than 0.01 in specific instances). PERMINATOR surpasses these requirements by 37 percent, while maintaining its toughness, an equally ...This story is related to the following:Safety and Security EquipmentSearch for suppliers of: Under-Slab Insulation | Reinforced Vapor Barriers