I have a question about venting when I insulate and finish off my garage. It has a vaulted ceiling right now with vents in the soffet. How do I properly vent this when I insulate? Currently I do not plan on heating it, but would prefer to insulate as if I am, just in case. There are no vents in the ridge at all. The rafters are 2X8. Any help would be much appreciated as I plan on doing this in about 3 weeks.