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Ledger Board Attachment and Moisture Barrier

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Not too shabby for a couple days of work!!

What happens here

This crucial step involves preparing the house wall for the ledger board, which directly attaches the deck to the house. Workers are seen removing or cutting existing siding to expose the rim joist or foundation. DuPont Tyvek HomeWrap, a weather-resistive barrier, is carefully installed or reapplied around the ledger board attachment area to prevent moisture intrusion. A pressure-treated ledger board is then cut to size, positioned, and securely fastened to the house using heavy-duty structural screws or lag bolts, ensuring proper flashing is also installed above it (though not explicitly shown, it's a critical best practice).

Goal: Securely attach the deck to the house and protect against moisture

Tools and materials

  • Circular Saw — Cutting siding and the ledger board to size
  • Drill DeWalt — Drilling pilot holes for fasteners
  • DuPont Tyvek HomeWrap DuPont — A weather-resistive barrier to prevent moisture penetration
  • Flashing — Directing water away from the house above the ledger board
  • Hammer — Minor adjustments or nailing flashing
  • Impact Driver DeWalt — Driving lag bolts or structural screws for ledger attachment
  • Level — Ensuring the ledger board is perfectly level
  • Measuring Tape — Accurate measurements for cutting and placement
  • Pressure-Treated Lumber — The main structural member connecting the deck to the house
  • Structural Screws / Lag Bolts — Securely fastening the ledger board to the house structure