My attic currently gets pretty warm. I have run the numbers and will be adding more eave intake area to balance the system. My current roof has what I would call “box” style vents. On my house (and most others) I see these located on side of the ridge that is least visible. My main ridge runs north and south 10/12 pitch. The original builder choose to put the majority of them on the west side of the ridge as its less visible to most people. I’m getting a new roof put on and going slightly darker. I’m considering adding a couple on the east side of the ridge because.
To get airfow or venting your need a temperature difference. The roof deck facing west will be the warmest. I think this slows down/reduces air movement.
If there were vents on the east side of the roof they will be in the shade sooner and the hot attic air would be more likely to escape since the roof deck will be cooler on that side.
Current roof is only 11 y/o - just trying to fix it right the first time… this board has opened my eyes quite a bit.