Inspect the sidewall around and underneath the fascia and inside the house for signs of moisture damage and repair any rotted areas.
Vinyl siding chimney flashing.
On a vinyl job moisture gains access to the back side of the vinyl at all sorts of points.
Roof chimney leak repair.
Add felt if needed before nailing the new wood on and prime the new wood on all four sides before installing it.
Wall flashing where siding meets a chimney originally posted by michael thomas.
This is why there are drain holes at the bottom of the laps to let it back out.
Nail j channel for vinyl or metal siding onto the flashing.
Leave a 1 4 inch gap between the step flashing and wood siding or cement board.
Install the kickout flashing underneath the first shingle photo 1.
Then an ice water shield underlayment must be installed around the chimney.