SEMPERFI8387
Moderator
Typically an overhang creates an area for vented soffit for airflow through the trusses/rafters to keep the roof at a constant temperature. It helps prevent ice dams which can cause leaking, damaged shingles, and destroy gutters. You want to maintain the cool air from eave to peak.Yes they are quite large, especially when you actually put them inside a building. You really get a sense of it then. So back to your original post, why do you think I SHOULD do an overhang? Just esthetically or functionality? I thought if I had them then at least I could do some pot lights all around it, just wondering if it has any true benefits?
With a steel roof it's not as much of an issue. It should save slightly on costs on trusses as the chords are shorter so less material.
I like the looks of overhangs, but then again, they are typical in our area.