I think one would get a real risk of water intrusion with putting ridge vents on the downward ridges.
Attic vents vs ridge vents.
And i know that that air foil speeds up the depressurization and will make the attic ventilation much more effective.
While a power vent fan combined with a ridge vent can work against the natural flow of air through the attic, it will still exhaust more hot air than not having a fan at all, it’s just not the most efficient way to go about it.
These vents are less effective than ridge vents because they do not sit as high up on the roof of the building, and they have a smaller surface area through which to expel air.
If all this seems like too much.
A ridge vent, as the name indicates, is located at the ridges where your roof.
A ridge vent works best in a smaller space (less than 1000 square feet).
3 roof turbines use active ventilation to remove air, while ridge vents use passive ventilation.;
In hotter environments, like the subtropics, there are cheaper and better ways to handle attic ventilation than ridge vents.
This is a common and popular type of vent that’s installed on the roof.
But, what if your roof doesn’t have continuous runs?
Continuous venting ridge is a type of ventilation that allows outward air flow along the ridge or peak of a roof.
Ridge vents even function when it’s not windy outside of the home;
Unlike attic fans, ridge vents are passive, not mechanical, ventilation devices.
What makes ridge vents so effective is how they run the length of your roof providing continuous venting.
Attic fan an attic fan is an active system that actually forces air out.
How it works is that it gets placed at the roof’s peak and it moves across the entire roof line.
Installation is simple, quick, and easy.
Ridge vents are those exhaust ports that run along the ridge of your roof.