Cathedral Ceiling, do you need baffles for vented space?

I’ve read through a few articles in this site for cathedral ceilings. I’m wondering, do you need to use baffles for a vented cathedral ceiling? Our cathedral ceiling space is… I’ve read through a few articles in this site for cathedral ceilings. I’m wondering, do you need to use baffles for a vented cathedral ceiling? Our cathedral ceiling space is…Read MoreGreenBuildingAdvisor