The next time you’re sitting beside the wing on an airplane, take a look out your window as you take off. You’ll notice condensation or rain being pulled up and over the surface by the air above it, almost like a vacuum.
Passive Venting Device (Weather Pro Baffle System)
The standard roof vent design, one that we have in our Duraflo SquareTop 6050s, has been around in both metal and plastic for over 40 years – and not much has changed in that time..
The idea is simple: airflow streams out of the attic through the bottom of the vent, getting rid of stale, old air from your home. Sometimes, however, these simple vents would also allow snow to fall straight into the attic.