One of the easiest ways to prevent poor attic ventilation is by checking to see if attic insulation is blocking the soffit vents. The ventilation process of an attic is fairly simple. The soffit vents act as intake vents, allowing cool air to enter into the attic, while the upper gable or soffit vents act as exhaust vents.

When insulation is blocking the soffit vents it creates inadequate ventilation and causes higher than normal attic temperatures. One of the best ways to prevent this from happening is to check and see if insulation is blocking these vents. You can see an example of insulation blocking soffit vents in the picture below: