Golf Mk2 Door
After cleaning up the old mess, I cut a new vapor barrier from Tyvek�, temporarily taped it in place for a final trim, then taped it in with Tyvek� construction tape. Be sure to have at least 1/2 inch of tape overlapping the metal of the door to make a water proof seal. Try not to tape over the small holes about 3/4 inch up on the bottom. These let water drain back into the door, instead of being trapped between the barrier and the lower flange.
Cut holes for the window regulator, opening lever, handle, and mirror.
Refit the trim panel.