Originally Posted by
Daniel Palm
Will these pressure conditions apply if I have adequate openings for the intake or exhaust?
Yes, but to a lesser extent.
If so, what is the best way to "help" ventilate the attic?
Add more natural air movement vents.
Increase the size/amount of soffit ventilation (not always possible) and gable vents (not always practical). If you have ridge vents and gable vents, the soffit vents may become less effective as the air may circulate gable-vent-to-ridge-vent, leaving the soffit vents doing little.