I am going to be siding my addition and replacing most of the siding on my house. Question is there a down fall to using only vented soffits? On older siding jobs I have looked at every third piece of soffit was a vented piece, but on some more recent work all the soffit is vented. I was be using power vents and most of the new jobs I have looked at have ridge vents. Has anyone used the vinyl fascia instead of metal? I don't have a break some I was thinking of using the vinyl but have not seen any of it before. Thanks Robert R.