Frequently Asked Question
Intake is very important to the ventilation system. Unfortunately, intake is often overlooked. In fact, inadequate intake is the number one reason for failure of an attic ventilation system. Lack of intake vents results in extreme heat buildup in the summer and severe moisture problems in the winter. Additionally, exhaust vents can actually become intake vents if no intake vents are present and pull in rain and snow. You must have a continuous supply of fresh air to “feed” the exhaust vents. The intake system must provide as much or more than the exhaust system in net free area.