The build up of old caulking interferes with the positioning of new trim for the siding.
Installing vinyl wall trim.
Surface preparation for vinyl siding installation securely nail all loose boards and wood trim and replace any rotted boards.
This video shows how to properly trim around fixtures when installing vinyl siding.
If the trim sticks out too far you may be using more adhesive than necessary.
Press the vinyl against the wall and flush on the floor as you work down the wall.
Nail the trim every 12 inches on center.
Use your hands and press along the length of the vinyl trim making sure it is even with the ground.
Scrape away old caulking around windows and doors.
Along the tops install j channel trim with horizontal siding and base trim with vertical siding.
It may help to scribe a light line on the wall that you can line up the top edge of the molding with as you go to ensure a straight application.
Cut the trim so it is two channel widths longer than the opening s width.
Miter or cut tabs at the ends.