In your case there is a great need for a flashing that runs along the top of any of the horizontal fascia boards.
Does all siding require flashing for decks.
This first piece of flashing needs to extend up at least 2 inches behind the deck ledger board.
Make the outline large enough to include space for the deck boards on top the ledger and any trim boards on the sides.
Tearing into siding is all but inevitable if you build decks on existing houses.
Pry the siding out near a nail then push the pry bar against the nail as you partially tap the siding back in.
You then attach the ledger board to the wall using approved through bolts not lag bolts.
Epa indoor air and moisture control guidance.
If the shingle already has flashing on it the kickout flashing has to slip beneath it and you ll have to loosen or remove siding to do this.
That should pop the nail head out far enough so you can pry it out.
There are at least a couple of good references for designing deck ledgers.
So how do all of these ideas translate into actual deck ledger details.
Seems easy when the flashing is drawn in doesn t it.
You need to make sure each material sheds water over the top of the material below without getting behind or under the materials.
Then slip flashing behind the siding covering the top edge of the ledger.
Add felt if needed before nailing the new wood on and prime the new wood on all four sides before installing it.
Start by making an outline on the siding where you want to position the ledger board.
It s necessary to remove and replace several courses of siding to flash a ledger properly.
Another thing to point out didn t see it in the article is to make sure you don t nail the deck boards into the band and through the z flashing last summer i had to replace all the siding most of the framing and detach a second floor wrap around deck because the builder had done this and the flashing failed causing water damaged inside.
These 18 articles will teach you how to install flashing and bolt the ledger connection to the house rim.
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.
You may need to pry out siding first.
If you don t do this and the bottom of the flashing is in direct contact with the siding capillary attraction can pull the water up so it leaks behind the siding.
If nails are in the way pull them out.
Slip the back flashing under the siding at least 3 at the top and the sides.
Only then do you have access to lift the building paper and apply peel and stick membrane and metal flashing the requisite 6 inches up the wall see illustration above.
Each time you transition between materials say foundation siding brick windows doors etc.
Install the kickout flashing underneath the first shingle photo 1.