Our house was build back in 1999 by the previous owner/general contractor who did not put exterior trim around the windows. As such, the steel siding butts up near the window (3/16" gap) on all sides. No caulking is used and I'm not sure how/if the window is flashed. I'm fairly confidnent the house is wrapped.
We now would like to add trim to the windows but I'm not sure how to undertake the project. I know that I would have to cut the siding out in the area around the window where we would add the trim. What would I do between the trim and the window frame? Between the siding and the trim. Is there a special procedure to construct in order to keep water out...thanks in advance...j