What is the expected lifespan of this product? Third-party lab testing reveals Aeroseal Envelope withstands a simulated 50-year durability test, with little or no seal degradation. By Jatemack|2023-09-13T17:26:45-07:00September 13, 2023|About|Comments Off on What is the expected lifespan of this product? Share This Story, Choose Your Platform! FacebookEmail About the Author: Jatemack