Deck joist ledger spacer behind ledger housewrap or building paper housewrap or building paper exterior sheathing flashing drip edge z flashing 2 z flashing 1 deck board siding gap.
Deck against siding flashing.
Make the ledger out of pressure treated lumber that is 2 inches wider than the joists.
23 roof to wall and deck to wall flashing home builder s guide to coastal construction page 3 of 3 figure 3 deck ledger flashing.
How to use flashing between vinyl siding and a wood deck 1.
Install z flashing along the top edge of the ledger.
You may need to pry out siding first.
Keep in mind the bottom of the upper siding should be at least two inches above the flashing or the decking that s near the house.
This flashing needs to extend up at least 2 or 3 inches up under the siding above the deck.
The horizontal leg should be wide enough to extend all the way.
Snap a chalk line cut out the siding and tack up the ledger board.
Pry the siding out near a nail then push the pry bar against the nail as you partially tap the siding back in.
For example if the deck has.
If the deck appears to have life left in it and the lacking flashing was discovered during an annual inspection recommended then some repair should be on your to do list.
If nails are in the way pull them out.
Installing z flashing to prevent water from seeping behind the deck s ledger board and rotting the board and the siding the flashing must cover the top of the ledger board and bend over the edge.
Materials required acrylic caulk drip cap galvanized flashing galvanized joist hangers galvanized lag screws galvanized nails and screws pressure treated wood z flashing.
Never put horizontal siding in direct contact with any horizontal material.
Make the outline large enough to include space for the deck boards on top the ledger and any trim boards on the sides.
Though it will take some dismantling and perhaps a replacement deck board or stick of siding following the recommended practices for installed ledger flashing based on your exterior cladding is the best approach.
Then slip flashing behind the siding covering the top edge of the ledger.
Start by making an outline on the siding where you want to position the ledger board.
Technical fact sheet no.
