Here is an example of an "architectural embellishment" that creates big-time water problems. I'm not quite sure what to call this structure that has been added between two rooflines, and completely blocks two valleys, carrying 60% of the rainwater from the front of the roof. The valleys have been "re-directed" around this obstruction, but judging by the attractive vertical flashing that has been added, the volume of water coming down must surely overload the gutters and make approaching the front door treacherous in cold weather.
Below is a fine example of the "floating porch roof" – No beams. It appears as though at any moment, the posts will punch right through the ceiling from the load. Beams create visual sense, even today, when they are often no longer structurally necessary.