This new butyl tape is engineered specifically for use behind the ledger board. Measuring 22″ wide, Trex Seal Sub-Ledger Tape creates a continuous water-tight seal between the ledger board and the house wrap to prevent water from infiltrating the house. Reinforced with an aluminum liner, the self-adhering, butyl-based tape fully covers the back of the ledger board and integrates with the house wrap to provide a continuous seal for optimal protection against moisture and water penetration. It also creates a water-tight seal around ledger fasteners. According to Trex, the tape is designed for easy application with a convenient triple-release liner that allows installers to bend and set it in place without it flexing back like other flashing tapes. trexseal.com
