I'm rebuilding my entire 600 sq ft. deck (full thread to come) that was horrifically built originally (to put it mildly).
Anyways, the original deck was built using 2x6 as decking and I'm going with 1x6 hardwood for the new decking, I'm using the existing ledger size so there is a gap I can work with, but I wasn't sure if there should be a small gap between the flashing on the house and the deck boards (see pictures). The first picture is maximum gap, the second is the deck board at the top of the flashing. Should they be pressed up against the top of the flashing (like the second pic) or leave a small gap?