Properly securing the ledger board is crucial to building a strong, safe deck. The ledger board is a horizontal framing member, usually two-by-10 or two-by-12 lumber, that supports one side of a deck and attaches flat to the wall of a house after removing a section of siding. Deck joists are typically attached to the face of the ledger board with joist hangers after the ledger board is installed. For the most secure attachment, ensure the ledger board fastens to the rim joist, just below the floor of the house.
Install flashing that is made for ledgers. It should be vinyl and have a “Z” shape that wraps around the top of the ledger. Where necessary, slip it behind moldings. Where the ledger is longer than the flashing, overlap the flashing pieces by at least 4'. Exterior Sliding Door with Deck 35. Install the pre-cut flashing over window head flange by removing. Under sill flashing.
Start by making an outline on the siding where you want to position the ledger board. Make the outline large enough to include space for the deck boards on top, the. AsktheBuilder.com: Installing a deck flashing properly is critical to keep water from getting behind the ledger board. The deck flashing needs to overlap the deck. How to install house wrap #TheRightWay (4:40) Extend house wrap below the mud sill—for water management, but also for air sealing. Seal the bottom of the house wrap to the sheathing with caulk or tape. Overlap the layers shingle-style as you go up the wall—like roofing shingles. Overlap vertical seams 6-12 inches. Immediately put the toekick up under the flashing and tight against the underside of the threshold, and screw it to the subsill. Run a bead of sealant between the threshold and each door stop. Finally, protect the wood with deck paint or several coats of spar varnish. Flashing Question On Attached Deck Level With Sliding Door. Used under the duraflash in the door area. The brick and before you install your ledger,you want. How to Install a Patio Door. From the outside, drive galvanized deck screws through the door’s flange and into the house’s framing. Recheck side jambs for plumb and the top for level as you work. Inside, drive finishing nails through the jambs and into the framing, one nail near every shim. Cut the shims off flush.
Locate the rim joist and mark an outline on the siding where you want to position the ledger board using a tape measure, pencil and chalk line. Make the outline large enough to allow space for the combined thickness of the deck boards, the width of the ledger board and any trim on the sides.
Cut away the marked area of siding with tin snips. Avoid cutting the house wrap beneath.
Cut a length of metal Z flashing with tin snips to cover the entire length of the ledger board, allowing an extra 1/2 inch to overhang each end. Slip the top edge of the flashing under the siding at the bottom cut edge and secure it with 11-guage aluminum nails driven into the house sheathing. Overlap any seams between shorter pieces of flashing by at least 3 inches and seal the overlap with silicone caulk.
Position the ledger board against the bottom edge of the cut section of siding, checking the board is level, and then tack it in place with a few 3 1/2-inch framing nails.
Drill pilot holes through the ledger board into the house framing for lag screws. Secure the ledger board to the wall with lag screws or bolts, as specified by your local building code. The building code will also specify the required size and spacing of the lag screws for your particular project. Tighten the screws with an impact wrench or socket wrench to where the washer just begins to bite into the wood.
Cut a length of metal drip cap flashing to the same length as the Z flashing. Drip caps direct water away from the house, keeping it from getting behind the ledger board. Slip the flashing under the vinyl siding and rest the bottom lip over the top of the ledger board.
Apply silicone caulk around the screw heads to prevent moisture from penetrating into the wall.
Ann Salter began writing professionally in 2010 and has worked extensively in the fields of art, architecture and design since 2004. Her work has appeared in informative guides on student housing cooperatives and sustainable building alternatives. Other areas of specialty include technology, health, gardening and cooking. Salter holds a Bachelor of Architectural Studies from the University of Waterloo.
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