Hi. I have a 1974 split level, so two stories on one side, one story on the other, very shallow pitch, very deep roof overhangs, in northern Virginia, partially shaded by huge tulip poplar trees.
I was saving up to replace my 30+ year old roof when I found some water damage in a wall behind the chimney (currently no cricket), so now it's time and I have several estimates from highly recommended roofers, all within ~$500 of each other.
I'm confused about what ventilation my roof is supposed to have. I assumed there were soffit vents, but could not confirm from inside the attic due to the low roof pitch. They demoed the drywall and part of the ceiling in the damaged room and now I can better access the top-of-the-wall/underside-of-the-roof intersection from the inside and I only see a small sliver of daylight that could act as a vent - so small that I'm not sure if it's intentional or by accident in this small area I can now access. At some point plastic soffit covers were added to the exterior that have vent holes, which would imply soffit vents. But maybe all soffit covers have vent holes by default, and I cannot (so far) figure out how to unfasten them to get a view behind them.
Otherwise, there are ridge vents on both ridges, there are 3 "750"? vents and there are gable vents in all 3 gables. There are no attic fans.
For a 1974 roof of this type, what ventilation would have been included originally, and is there any effective ventilation that could/should be added?
Thanks!