I love roof overhangs on so many levels. On the symbolic level they convey a sense of protection and security as they shield us from the elements. They’re welcoming, like open arms saying, “…hello, here is the entry, come inside”.
On a purely functional level they are great climate modifiers, keeping the walls dry at critical joints, and are particularly effective at shading summer sun.
As a crusty waterproofing consultant once told me “I would be out of business if every building had generous roof overhangs; a poorly designed or constructed detail will not leak a bit if it doesn’t get wet”. At Stillwater we have embraced generous roof overhangs and always try and employ them, particularly over windows.