I would normally install the regular colour match trim nails, two high on the flat profile to keep it in place during any high winds

@@allinadayswork9482 ever use small trim screws? I feel like I’ve seen that done and it looked pretty good?

There are a couple of options for wrapping fascia around a corner. You can do it from 2 separate pieces making sure to overlap the corner on the first piece, then lay the second piece on top, making it flush with the edge. The other option is to make a relief cut in the bottom of the fascia (the 1 1/2" flap) and use either a hand seamer or your speed square to help bend the face of the metal fascia to a 90 degree angle. In both methods, make sure to cut a 45 degree mitre on the overlapping 1 1/2" flap to clean it up.

Hi Ernest, thanks for your comment! We use straight fascia wherever eaves are being installed and for gable end fascia we add additional bends to stiffen up the metal to minimize the oil canning effect.