Gable roofs aren't limited in their design potential, making them popular choices for ... of a gable roof creates an ideal spot for an attic vent. This is preferable, as gable vents are some ...

So, to answer your specific questions: Yes, it probably makes sense to add ridge vents to the main part of your roof. And, yes, if you do that, it would make sense to close off the gable vents you ...