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Trex Seal offers self-adhering butyl flashing tapes (ledger tape and sub-ledger tape) designed to create a watertight barrier around and behind the ledger board to prevent water intrusion and wood decay, thereby extending the deck’s lifespan. The tapes are AAMA 711-13 compliant, marketed as a waterproofing alternative to traditional metal flashing, and backed by a 25-year warranty. The product line includes 11" ledger tape (25' or 50') and 22" sub-ledger tape (25'), engineered to integrate with house wrap for a continuous seal at deck ledgers.
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