Is there a structural reason why steel beams supporting a carport roof need to protrude past the edge of the roof?
I'm dealing with situation shown in the photos. The protruding beams cause rain water to flow back under the roof. It's tempting just to cut the ends of the beams off even with the roof line - although it might be laborious to cut them.
I could build a miniature roof over the end of each beam and use flashing to deflect the water.