Often with new construction the roof flashing is first nailed to the wall.
Gable roof to wall flashing.
Bigger step flashing is better.
Then the house wrap and exterior wall covering are installed over this roof flashing.
To install the roof wall flashing above the builder bent the top edge of the flashing into a 90 degree lip about 2 cm in width.
This creates a horizontal top edge that is even with the bottom of the roof eaves.
Finally the housewrap can be laid up on the wall to cover the top of the kickout diverter and step flashings.
Proper roof wall flashing example.
I recommend 12 in wide step flashings bent for a 5 in.
There sometimes is a problem with movement differences of the wall and the roof decking when the flashing is fastened to both the wall and the roof.
The narrower step flashing just isn t wide enough to protect the intersection fully.
The bottom row of vertical siding goes on the gable end of the house first.
Roof leg and a 7 in.
That lip is then set into a reglet or groove in this case cut into the mortar joint of the brick wall above.