What appears to be fully vented soffit on the house exterior might be solid wood underneath preventing any airflow into the attic. In this episode of Airing it Out with Air Vent, a roofing contractor explains why the roof has to be replaced including the entire deck because looks can be deceiving.
http://airvent.com/index.php/education/air-vent-university/podcasts
Have a suggestion for a future Podcast topic? Send us your ideas and feedback to pscelsi@gibraltar1.com