Grace Waterproofing Products PERM-A-BARRIER ® VP Air Barrier Solutions Preventing moisture penetration at San Jose Airport San Jose Airport North Concourse San Jose, California “ The Perm-A-Barrier ® VP sealed around all the penetrations, including the post- applied fasteners. We had absolutely no water intrusion.” Michael Thomas Pacific Erectors intrusion at these penetrations, we needed an air barrier that would seal around them.” The answe

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