Flashing A Deck Ledger Board On Vinyl Siding

Start by making an outline on the siding where you want to position the ledger board.

Flashing a deck ledger board on vinyl siding.

7 apply silicone caulk around the screw heads to prevent moisture from penetrating into the wall. Window and door cap 1 25 in x 120 in x 1 56 in aluminum z flashing. How to use flashing between vinyl siding and a wood deck. Slip the flashing under the vinyl siding and rest the bottom lip over the top of the ledger board.

Most house framing relies on building elements floors walls roofs being stacked one atop another. How to flash a deck ledger board if you cut out your siding to install a ledger board careful steps must be taken to ensure that moisture cannot reach your house. Infiltrating rainwater can travel downward sideways and even upward so special flashings must be used. These 18 articles will teach you how to install flashing and bolt the ledger connection to the house rim.

Then slip flashing behind the siding covering the top edge of the ledger. Make the outline large enough to include space for the deck boards on top the ledger and any trim boards on the sides. The deck ledger to the house is an unusual connection in home building. My instinct is to replace the deck and eliminate the ledger altogether add posts near the wall and leave a big gap between the end board and new flashing tucked under the siding.

Properly installing a ledger board for your deck is one of the most important structural components of building a safe and strong deck. I would remove the old siding that was behind the existing ledger to about an inch above the deck surface.