Sub Ledger Tape

The ledger board is a critical component of any deck. If not properly installed and protected, this single element can lead to premature deterioration and even collapse. Trex® Seal Sub-Ledger Tape is a new 22”-wide flashing tape specifically designed for use behind the ledger board to waterproof the space between the ledger and the housewrap for optimal moisture protection.
— Trex Seal