Need help building a deck

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I think I would wrap the whole ledger board with a big Z flashing or a Z flashing and then tin with a drip edge tucked behind the Z and hanging down a little below the bottom of the ledger, and then bolt my joist hangers thru the flashing. Then start the siding again below the ledger.

Any water behind the siding would run down the tar paper or house wrap and take the Z out and around the siding below.

Just an idea.

I don’t like the idea of bolting thru the siding.

I think he thinking of moving the siding first.
 
Yes removing the siding first.

For best results the bottom of the siding could be cut at an angle so the front surface acts like a drip edge. The flashing goes tight to the top of the ledger and the deck board goes in tight to the flashing and the bottom of the siding can be as much as an inch away from the top of the deck board so dust and debris don't fill that space.
 

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