In humid climates, some deck builders prefer to leave a 1/2-inch air space between the ledger and house to assist with drying in the event that the ledger area gets wet. Because this weakens the connection, through-bolts should be used, as shown in Table 4-6 below.
Sometimes you may want to extend your ledger board beyond the house to function as a beam with a post connection at the opposite end. In this case you will probably have to double up the ledger board for at least the half the distance to the post for adequate strength.
To extend deck life, That Rot eliminate pockets that catch water and debris. 2 Professional Deck Builder March/April 2007 house is key to a long-last-ing ledger connection. A sloped and flashed ledger above sheds water and debris. A properly flashed flat ledger thats flush with
Example: If deck weighs X lbs and that is distributed over a 50" ledger at one end of the deck and distributed over a beam and 2 posts at the far outer end of the deck , if you extend the deck ledger past the house, you now have the original deck weight of x additional 24" of weight distributed over the same 50" ledger.
And since the deck is only 4" wider than the house it may not be such a big deal to have the ledger stop at the end of the house and the rim joist of the deck extend past the extra 4". However you may wish to flash and cover the exposed end of the ledger board at the end of the house.
How To Build A Deck - Attaching The Ledger Board. The ledger provides much of a decks strength; it supports the joists at one end, and it provides stiffness to the framing. 16 penny or screws every two feet to temporarily attach the ledger. In our example, one of the ledger boards extends past the house. Do not drive the structural
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