okay we have our F trim in place here and we're ready to start installing vinyl vented soffit here so we have our vented soffit trimmed and ready to install it here so basically what I've done is I've taken a measurement from our wall to the face of our fascia here and I had eight inches which makes sense we have the eight inch overhang and then I've pre-cut our soffit
panels to length so if we have eight inches I usually subtract about a half-inch and I think I cut these right at seven and a half which I did and I do that just because it'll give us a little bit of play here one thing sometimes the F F trim doesn't sit tight to the wall looks like we're pretty good all the way along here but then we also have some material thickness
of the F trim itself so I take a little bit into account there and then I like to be able to sit back from the edge here just a little bit because we're going to have our fascia coming over this and I don't like anything sticking out from there so I just take about a half inch off and that's about the right amount to be able to have some extra place so
what we're going to do is we're going to take the piece of soffit and put it into the F trim and then I bring it back just a little bit so it's pretty flush with the front and then we're going to go ahead and screw these into place so what I like to use you can use...
See more here: https://www.youtube.com/watch?v=PwgDmr6oZJI