The TREX Seal Ledger Tape is an 11 wide butyl-based tape reinforced with an aluminum liner. The 5.5 double release liner makes this peel and stick tape easy to install with accuracy. It seals any gaps between the ledger and the substructure for optimal protection. The 11 wide butyl-based tape offers a superior alternative to traditional ledger flashing by creating a waterproof barrier that provides complete coverage of the ledger board.